Well then we would need to factor that Jack also got treatment. Yes they fought sulong for an equal amount of time but we must note that Jack + gifters were fighting Inu long before Neko and Peros started.
Everything you've said is true which is why I am saying Jack is in a worse condition. They're both injured, they both got treated, and Jack actually got to rest longer. Yet, he needed gifters to fight pre-pre Sulong Inu when Base Jack is supposed to be slightly superior to a full-powered Inu with both legs. Jack used hybrid as well as help from Gifters to fight a nerfed Inu, but he still couldn't completely dominate the fight which goes to show how much he's hindered.
I don't agree that Jack is much stronger than Peros. Especially when we consider his performance.
I don't see how that conclusion can be drawn given factors like;
> Inu and Jack fighting long before Neko and Peros
> Peros being in better shape than Jack
That's not the reason why I am saying Jack is much stronger. Jack defeated Shishilian and 3 other Mink lead performers along with a number of other Sulong Minks. Meanwhile, Pero almost lost to Wanda and Carrot both of whom are weaker than Inu's and Neko's top 3 guards.