So I took a look at Comps website.
The 829-16 lifters that I have been running are now $628.95.
The 96829B-16 are $1,195.95 so I would sure hope they would last longer.

I am going to contact johncalliesinc and see if they will rebuild my 829-16 lifters and go from there.
Thanks for all the replies and information!
MJ