I've pretty much dropped EP in favor of some other materials I've found easier to work with, but I build my baitfish pretty much the same way. If you use too much material, you'll have problems casting the fly. Not because it's too heavy, but because t won't shed water the way a more sparse pattern would. It looks good to me, but you'll know on your second cast if you over did it. Here's an "EP" that I tied with Steve Farrar FB, I can cast these with a 7wt. Slinky fiber works well too.