i'm sorry i left alot out i really don't know alot about this yet but the arrows are super carbon magnum arrows and we have not cut them yet but i have a 27 inch draw length so i'm assuming it will be about 27 inch arrow and my tip will be a thunder head 100gr. and i will be shooting vanes. the guy at the shop i bought them at said that those would be a good fast arrow i'm just worried about them being to light i hope this is enough info thanks for the help.