A Shocker can shoot 24bps with Vision on, I know must others can do around the 30 mark, but how many people out there can even come close to that? It mainly comes down to trigger set up really. The Octane Shocker is no difference from a stock Shocker, except for the body. The internals and board are the same, so it is no faster than other Shockers. Others such as the Dynasty have different boards so the performance is slightly better.
There are many other after market boards available for the Shocker with various different features to improve performance (see Skeetmaster). Anyway, if you're using ramping then you're capped at 15bps anyway... So no advantage speed wise between either.
The only let down with the Shockers compared to something like the G7 is 'Vision'. The G7 uses laser eyes (I think, not much of an Angel chappy
) where as the private label Shockers use SP's Vision. (Although laser eyes are available for Shockers; just takes some work though)
All comes down to personal preferrence though. My Shocker has been flawless and have loved it since I've had it. Never used a G7 though... So slightly biased
Look at all the Private Label Shockers though which are 'team based', must be something right with them for all those teams to be using them
Anyhoo, I hope that helped.
Russ