Raynox 5000 or 6600 WA use?

[fishtek]

Is anyone here using the Raynox 5000 or 6600 wide angle conversions on their G10? If so, I'd like your thoughts on performance, please. I'd also like to know just which components I'd need to order to enable me to swap between "standard" and "wide angle" with a minimum of fuss.

Thanks!
Don