Rammus spinning his wheels

I am a tank/cc guy, I can't help it. And Rammus' taunt is one of the best single chap cc's in the game.

But I still don't see him doing as well as Jungle tanks witch are just as tanky, but better initiation. Zac can go over walls, Sej can go through them, and Vi goes through walls, player and anything in her way. Poor Rammus bumps a minion and he is crawling again.....

My suggestion to buff his Q is to have it gain improved impact effects at a certain speed. For example at a certain speed (600?) if he hits a narrow wall he jumps it and comes out of his roll (one of my friends suggest he just grind through it!). If he hits an opponent at that speed maybe he knocks him further back or stuns him longer? Or the stun is longer if he knocks them back into a wall....?

It means you can't point blank Q over a wall or toss a champ away.... like Sej or Zac or Volibear... but considering he has the only speed boost that can be stopped on impact with a minion, I thought he could use some love to compete.

Thoughts?