I've got my '03 Pro 40 Dually set up for indoors right now shooting 2315 X7's that weigh 498 grains. The draw weight is set at 60 pounds and have a 29.5 inch draw and it's still shooting 257 fps. The bow is VERY accurate but I'd recomend a 50 pounder for spots, depending on what holding weight you personally like. There will still be plenty of speed at 50 and will be easier on your club's back stops. I think the Pro 40 Dually's real home is on the 3D range