Yup only the older spyder detents fit. The new style have a larger head on them. They'd still work, you just have to trim them down to fit in the hole properly. I'd also go with the older style intimidator detents though, they last way longer and you can find them in even tougher versions if you'd like.
ETEK 3LT, with 14" Ti boomstick and cure 3 + bolt F/S
Vanguard creed eyes, membrane, bolt pin, detents, gaskets, schraders, orings and more F/s[/color]
Old school angel poppets/cup seals(LCD and A4/speed), spring detents(not sure which models) F/S