im a proud owner! had a deal i couldnt pass up. now i need some toys to go with it or not? anyone recommend the STS stopper for this crossbow. also i see they make 3 different type material strings for this bow. dacron? fast flight? pro=s cons- ? it came with 100 grain wasp heads . is 100 grain a good start. i got some magnus stingers in 100 and 125. i guess i need a target block or will a bag work .