You will find at those higher speeds the smaller size ones are a bit easier to tune. I have some of those ultimates from last year and yes the blades do come lose. Also a two blade broadhead is easier to tune at those speeds. Land sharkes and magnus stingers come to mind.

magnus stinger being easier to deal with than the land shark. The land shark bleeder blades don't attach to my likeing. that was dissapointing but it shoots well without the bleeder blades. The magnus stinger has smaller bleeders and they are attached from the factory. I liked that head. Hope Jeff leaves one lying around so it can find it's way onto one of my arrows.