Have a question about there flight and also how and what to use to tune them in.

Check this out... it should help.
http://www.huntingnet.com/forum/searchpro.aspx?phrase=Guillotine&author=&f orumid=ALL&topicreply=topic&message=subjec t&timeframe=%3E&timefilter=0&language= single&top=300&criteria=AND&submitbutt on=+OK+

I don't know I just dont like them because you have to use full lengh arrows

I am going with the rocket 2in mechanicals. If you buy the gillotines, buy replacement blades so you can sight in. They are only good for one shot.