I hope you guys reconsider the 60 degree slope change. I'm not sure if you realize how much of the normal terrain in game is > 60 degrees. I would suggest upping this if you want to keep it in the changes, otherwise it is going to be an annoyance to anyone playing the game.
This seems like it is on track to me. 7500 kills should eliminate a good chunk of volatility, and a 10K PED starting bankroll doesn't seem too far off.
Looking back at my hunting for around merry mayhem I had 16 out of 70 runs that were > 100% TT return. Typically around an hour per run...