Hi I'm new here. I've a few questions. I've a Yamaha EX Compound., 60lbs @ 28 inches, tuned down to 50lbs, it was designed with Toxonics sights on a rail with slide, & string guard built in. Can anybody tell me anything of the history of this bow? I'm also having alot of trouble setting the sights, while with my other bow it was simple to set the sights, & they shoot true every time. Can anyone give me some tips on setting the sights, perhaps I'm doing something wrong? I've an old Martin 35# recurve, that The manufacturer can tell me noting about, and an AMF, WingArchery Slimline Pro Recurve that I would like to know more about. Well that's probably more than I should ask so I'll go for now.