This is a very welcome improvement to the game but needs some tweaking.
1. Pebbles of steel
If technically possible, make it so that objects lower than 2 meters (for example) aren't counted as slopes at all. You should be able to just step over rocks and little bumps. Cataloging every small rock and bypassing it independently is way too much work.
2. Speed of coming to a halt
When you run into a 45 degree slope, the mech shouldn't stop so suddenly but over a time of few seconds. Note that this would quite well fix the pebbles of steel problem too if the fix above is undoable. Let's say that a Jenner loses 50km/h per second when going to a 45 degree slope. So at 3 seconds it would come to a halt. Now when you run over a rock, you're gonna be on that rock for only a fraction of a second so the loss of speed would be hardly noticable.
3. Weight / size balancing
Mediums need love. It's simply not fair that a 45 ton Blackjack cannot climb hills any better than a 70 ton Cataphract. Perhaps the Dragon could be in the same bracket as mediums but all other heavies should be more clumsy. Or actually best just make it by weight class. Doing separate size classes for movement is way too complex for most people to understand and remember especially with no proper documentation in-game.
Edited by arghmace, 04 July 2013 - 01:22 AM.