I use the Muzzy three blade in 100 gr. I have also heard that Rage are good, if you can keep them closed in your quiver. YOu should start by narrowing it down to fixed blades or mechanicals. Both have pros and cons.
my broadhead of choice is the Rocky Mountain Snypers. There was a test done on a hunting show with a machine that drew back the bow. They tested many broadheads and the Snyper 2 blade expandable flew more accurately than any other when fired with a field point. The benefit is you can practice with a field point and be sure the Snyper will hit the same area within a half an inch when you are hunting. Hope this helps.
Anyone who shoots a sabot bullet has had the problem with loading the next round with a dirty barrel we have all struggled with it.
Between muzzleloader shots I have done some research and testing on my own to find out what works for me for the next shot. I have been using a product called bore butter and when the muzzleloader is just sitting around I leave it caked in the barrel for protection. Have also found that if I lube my sabots with bore butter they really slide nicely down the barrel....