Can you show us the ruling where it changed?

okay, I conceed, I was going off information that my Venue ( Judge)had provided awhile ago that there was discussion and conclusion that the sheild stack was over used and therefore limited.
Of course this happened right after a tourney where I ran ultron and 5 sheild guys. Inflicting 56 points of damage on one attack against my opponents' grouped figs.

I went on to will Janr Foster that day

Big damage piles aren't as easy to pull off these days. Enhancement and SHIELD don't increase the attack's basic bludgeoning power anymore; now, each bonus will only apply against a figure once.

To figure out damage from overlapping EEs, total up the damage dealt against each figure without any damage boosts first. Once you have a number for each figure, increase each total by 1 for each instance of Enhancement or SHIELD.

got it, thanks!!

The other change I can think of from IC is originally you could activate SHIELD after you hit. Now you have to do it when you make the attack instead.

Actually, that was the same in the old rules. You had to declare your use of SHIELD before rolling, just as now.