So I am still running my YAC/CIS pick up guy. Right now he has bronze CIS and silver YAC, with 2 unspent APs. I will gold YAC with the next point.
A couple of observations:
1. CIS with bronze (60 balance) fires about as much as Silver YAC (58 rec awareness)....WITHOUT investment in Power Running. What has actually raised the rate of fire for YAC, has been my pumping his power running. With Silver YAC, when he had 0 invested in power running, I don't think it fired one time. But since I have been pumping power running, it is now firing at a decent rate (42 currently...started at 11). I don't think it will fire (or you won't see it on the screen) unless he catches the ball and does NOT get tackled immediately. He isn't breaking tackles yet...but he is getting "held up" for a few seconds before going down...and YAC is firing.
2. I am hoping my hypothesis works when both YAC and CIS are gold. I think they can complement each other very well. At gold and decent balance and rec awareness, even if they cancel each other out, one should fire almost every time he catches a pass. If YAC fires (which is what I would like), then he gets the bonus to balance and power running. If CIS traffic fires, he gets the speed/quick bonus (although that isn't that important for him...although he can use all the speed at end build that he can get) but what is most important to him in CIS is the "Player automatically passes all balance checks". This is important because he is a power runner and when CIS fires, he will not go down immediately, keep his balance and his power running will kick in.
So almost every pass he catches, he will have full balance and a load of power running to crush those little CBs

I'll post some replays once he gets to higher levels and the SAs start to kick in.
https://glb2.warriorgeneral.com/game/player/352589