The Corally SP10SL is indeed a great chassis! I would say that though ;-)
I have been running mine for about 12 months now and had some good results with it. It is based around a 2c (17.5) setup but can accomadate a 1c LiPo very easily. I prefer to use the 4-pivot rear end over the link rear end, but it's just a tuning aid and not neccesary a 'must have' straight away.
Here's a pic of mine ready for a meeting we are having this coming Sunday:
I have run it with various electronic layouts, and wanted to try it like this to see how it feels over having the LiPo down the middle.
If you have any questions or would like some more info, feel free to ask!
Cheers, Chris.