Hi Ken,
The wedge hangs my C9.25 solid as. Have a look at the celestron site and they say
' Celestron's HD Pro Wedge is designed to support our fork mounted Schmidt Cassegrain Telescopes up to 11".
Its got the recesses for the base also which makes it dead easy to fit.
You could always upgrade your 8 to a 9.25 while you're at it
