I'd talk w/ Dwayne Porter before you jump ship and build a wedge. He spec'd my cam and springs. No issues here and we're using "similar" setups.
I have DLI roller rockers, MP shafts, and MP stands on MP heads.
You obviously have something wrong...whether it's the cam/spring combo or an oiling issue, I don't know.

Well, my thinking is, if we test the other intake springs and find that they have fatigued as well, its an oiling issue for sure, which is what I am pretty sure it is...Last time, I broke 4 of them, all intake springs. We will look at the oil feed holes in the rockers and see what they look like with the valve covers off. The only fix will be the RB rockers....And I already have a cam on order with a milder ramp rate...

I was on Indy's Facebook page, man those Predator engines make some steam....

Randy,

What oil are you running? Hemi's need 20-50 to keep the oil in the top half.

We run Penn Grade 20-50.......Pretty sure we are doing everything right, but ....this issue is not going away without changing somthing.

If your problems are truly related to spring oiling, here is something that can be adapted without spending 5K, and it came from one of your threads:

I have to agree with you there, more power and problably better reliability than a Hemi.

I know who's engine that is....He used to frequent here a lot, then he sold that car. We talked about this, and I am not sure that would provide enough "spray" for a valve spring issue....might be good for push rod tips....I would have to try it. This is why I am shocked Indy or others do not make spray bar valve covers for a Hemi...

Well, one this, Chrysler never intended for these to be street engines. The first Gen Hemi and the Third Gen Hemi were designed from the start as a street engine and then adapted to racing. I still think having a stock oil system that oils the top end on a street engine is the way to go, maybe, even add spray bars.

I had spray bars in my Hemi in the Cuda. Never had any issues with it....

Looking at your first picture. Can you drill a hole in the rocker arm that would direct oil to spray on the spring?

Does all the oil still return through the valley like a small block? Can you change the drainback to allow the covers to fill with more oil and make contact with the spring? I know the springs on my small block likely sit submerged in oil at highway RPM providing them good cooling. 8 drag weeks and no spring problems. My last set had 3 drag weeks over 5 years of racing and street driving. Likely only 4000-5000 miles because I don't drive it as much as I would like.

I wouldn't be afraid to spray bar oil them heavily on the street and use a valve to shut oil off the to the spray bars when you race.

Tim at FHO has Stage V drill an oil feed hole in the intake rockers to oil the roller tip on street Hemi's that see sustained driving under 3000rpm. That would also supply extra oil for spring cooling. Are you running the installed height to provide 0.060 cl to coil bind at max lift to prevent spring harmonics?

So you're going to change two things at once. If it solves the issue, great, but you'll never know what the cause really was.
I'm leaning towards it being a cam/spring issue. You don't need rocker arms designed for a high rpm super stocker to keep a hemi alive on the street.

Did you groove the # 4 cam journal to oil the rockers full time.
If not I would, you may need to add an oil passage restrictor to your rockers if they are needle bearing on the shafts to avoid flooding the heads

I have the barton rockers, and they are jewelry forsure, but not the only answer..... So many things get overlooked, like prime the engine with covers off to see how well oil is getting to the spring. was the spring close to coil bind? was the spring not compressed enough? did you just check a spec sheet or did you actually measure it..... because if you measured it i would be willing to bet it has less lift then you may think. There is some deflection in rocker gear. It can be done, I know because I have done it. Four years ago I competed in a drag and drive event with a cam that was .791 lift and @50 it was 282intake and 300exh, in the event we did over 350 miles in 2 days. Not huge, but i drove the car like that for years without an issue for years, and my new cam is bigger. I had norris steel rockers on a indy 1RA cylinder head. I didn't use any oil restrictors and had -10AN drain backs in back of each head.

That is a great point about measured lift vs what is on the card. The difference from my cam card to the lift at the retainer is rather large. Large enough that If I was shimming the spring off of the card I would hardly have been in the zip code of the right shim pack.

That is why I like my RBRE rocker system. It has built in oilers within the bars. I have over .800 lift and street drive mine all over.

And the holes in the gold spray bar are pointed right at the intake springs, correct?

They point at the intake pushrod tip, which then also sprays the spring.

I have a plan....I am going to order some parts and see if I can Engineer my way out of this problem....The good thing is, I have really good oil pressure at idle, so making my own spray bars hopefully won't hurt my oil pressure at idle....I still can't believe nobody makes a kit for this stupid issue....

Those holes in the spray tube are very tiny. Maybe someone will let you know the size. Too big a hole will drop oil pressure