I'm talking about the differences between the incarnations.
Bane went from having under 3 years of training (POD) to a further ten years (ROT) to again a further ten years (DOE), with similar moments in the story where he goes through major power boosts. There was far more time between each incarnation and he started at a point where he'd received hardly any training.
Krayt likely didn't improve at the same rate between the incarnations that Q outlned.
Theres like 80 years between his fight with Abeloth and his peak, lol.
Most of it was in cryo though. 😛
Krayt likely didn't improve in terms of skill maybe, but he was weakened considerably by his sickness and after his resurrection he claimed to have multiplied in power. I'd say theres likely a significant gap between incarnations.