X factors Abilities

When upgrading cards do you upgrade via training all the entire line up or just 1 once depending on ability , reason why i ask is im finding myself using all the AP allowed per game on 1 or no more than 2 cards when i activate them for a game so i only have say 2 cards on offense and say 93 Parsons using all 9 AP on defense,

I mean if using all your AP on 1/2 players gives you the best chance to win then it’s not a waste. I use 4 ap on my d -line, and 5 in my secondary, but both of my sub lbs have 0ap lurk artist so that helps me be able to spread it around. Offense I use 4 on my qb(SFL + 0ap gift wrapped) discount linchpin, and slot/outside apprentice on 2 wrs.

Generally, I try to spread my ap out on defense. There's only so much a single player can do on defense. I would rather spread out some KOs among my secondary than stack it all on one player.

On offense I use all my ap on my QB. But I still use the free Vick from the season and there's severa QBs better. I'd be more willing to spread out ap if there were other abilities on offense worth using for my scheme