This what My experience with the two cams has been.
My niece Taylor and her twin brother Tiylar , both have 1500s her truck is a 2014 RCSB 4x2, 44k, his is a 2009 4x2 RCSB 75k. We did the MDS cam swap in June on her truck, after an average of 3 pulls HP/TQ = 315/340 stock, no tune, no aftermarket anything, after the 392MDS cam was installed HP340@5500 TQ 375 @4400, after tuning was 355/380. His truck same dyno in September made 306/336. His buddie’s dad told him that the Non-MDS was the way to go, after install, 345 @5600, 390@ 4400, after tuning was 365/410, but his truck made 5-20 Hp more from 2000-5000 and 10 more from 5000-5800.
I didn’t dyno my 2014 RCLB 4x2 truck before I did the cam swap, after the swap I had my truck on the dyno my non-tune number was less than hers #’s by 5ish, my after-tune numbers were better than hers by 5ish, same dyno but mine was in April

The 392-short block (with Eagle heads) that was in my truck made 400HP@4300 and 393 TQ @5300 with the MDS Cam, NON- MDS Wass 407HP, and 400TQ, but from 2500-4700 the Non-MDS made an average of 20 more Hp and 25 more TQ
So yes, you are correct 5 Hp, best case is max 10 more peak HP but thru the RPM band the Non-MDs cam is a better choice for max effort, broader, smoother curves thru out the RPM band, is it worth the $ 175-200 difference only the end user can decide, but considering after market VVT cams are in the $600-800 range…. bang for the buck is still awesome.
Now the 428 in my truck now with Eagle heads was making 452 with the Non-Mds cam, and made 440 with the MDS
With Comp Cams # 201-424-17 my 428 is pulling 485 hp on the dyno paid $635 for this cam, $400+ what I spent on the Non-MDS for 30 more HP.