Cromwell mid pen has always been 120, sherman has been buffed to 120.
2 out of three generalists have 120 mid pen.
Negated or not, it's a laughable excuse.
A 5% chance to bounce at long range won't make jp4 better.
It's (not specifically you) double standars and hipocrisy at its finest.
Multiple times it has been pointed out that "jp4 can pen any medium" and that "allies don't have panthers" while the Comet (which falls into medium category and is nondoctrinal) has 42% chances of bouncing at long range.
Going back to the cost point, Comet has also a lot of utility, a turret, good ai performances, an accuracy no brainer upgrade that makes total accuracy better than jp4 vet 0 and 1 and same exact penetration, while having far superior mobility and healtpool, only for 40 more fuel.
The issues will always remain:
1) Unless the opponent decide to spam generalist and handheld at lose deflection damage "mid" armor is useless.
It won't bounce anything else anyway.
2) As a medium counter is insanely expensive
Or
3) As an heavy counter is lackluster in penetration
4) its [insert 80%of okw units here] veterancy has been lazily implemented and reworked. It takes incredibly longer to vet up compared to the counterpart while vet 5 is now vet 3 (*pointing at now useless vet 5 first shot damage bonus, that doesn't actually reduce the number of shots required to kill at all, and more issues).
Ah well i didnt realize cromwell pen was so high, seems like a bit much tbh. Similarly the su85 DOES have too much pen, it could afford to drop some pen in favour of a 200 damage point i think but (yes i know I brought it up) at any rate the role of the su85 is to tackle armoured up foes, while its only a 5% chance to bounce the mere fact that it CAN attests to the armour on the JP4. Units of lesser pen are much less effective *cough* su76* *cough*
Also im unsure why we are even using the mid range as an example, having 60 range if an enemy is poping shots at 20 you done goofed on a tactical level, we SHOULD be using far values but no matter.
I personally feel that the only problem with the JP4 is that it comes too late. Ideally imo the schwere should have its price split so obers, the jp4 and the p4 come a bit sooner but have the AA gun and panther and KT delayed (more in time than overall cost) to give the OKW more of a chance against allied cheese (su76 spam, stro)ng infantry and the likes) while not INSTANTLY haveing a hard point in the schwere (how many times have you caught it setting up JUST too late and been forced off by sudden model evaporation?
Anyways. Comparing to the comet is incredibly silly. The JP4 outranges it by a third the comets range and doesnt require a full tech nor a specialization to get. Plus the comet has a pop of 20 vs the 14 of the JP4. So yea its only 40 fuel more but its got plenty of its own drawbacks too
You get the JP4 because it is a definitive medium counter and if the enemy does go the route of mediums it gives the best chance of survival, it needs to be supported but its bar non the best medium counter around.
I certainly wouldnt be opposed to taking a look at its vet (get some pen modifiers in there) and timing, but much cheaper and it would be a no brainer because of its range amd durability and that shouldnt be the case