Please for the love of everything, do not take away Hecarim's ignore unit collision on his passive! It's one of the MAIN reasons I love this champ. There are a only a couple of champs that ignore unit collision and it's a unique aspect of Hecarim that makes him fun to play. I hate getting creep blocked. It is literally the worst feeling when you miss out on a kill because you path in a circle around minions letting the enemy escape. Creep block is the reason I don't play Jax...he just runs in circles half the time when you harass a champ in minions. It's not fun! I also think Hecarim would have a pretty bad time with creep block because his collision box is pretty large.
Please don't go through with this change!