The slot system wasn't for the sole purpose of nerfing cav, it was done to restructure how Melee could also carry multiple types of weapons, becoming one man armies, in addition to pulling a pike out of their asshole.
This would really only effect lancers and HA and their ability to choose to have a 1H sidearm or not, HA of course could opt to take 1 less quiver.
Horse bumping has absolutely no effect if you have body armor above 50 so I would like to see something done about that first, or the rest of you should just wear heavier armor. The horse is expensive, and the expense does do a good job of limiting its use. However, the marketplace has nullified that balance as most players by now have unlimited gold, just sell your heirloom point or do some trading/scaming.
and dangah, your anecdotal evidence does not stand up to testing, please try again. Remember, an object in motion tends to stay in motion, until enough peasant's have sated it's bloodlust.