RE: Jennings Buckmaster
I have owned several Jennings though not one of the original Buckmasters. At the time they were first introduced they were something of an oddity in the sense that you were getting many top of the line features (for the time) at a mid-level price. They sold like hotcakes.
As for the bow itself, the grip is a bit big for my tastes...and if it has a swing arm cable guard on it then make sure you have enough clearance for your vanes.
Hope this helps somewhat.