You are wrong on one point. The TLR is lighter than the SP1 version.Re: RC51 VS TL1000 (fattony)
RC-51 is lighter and handles better.
There's a reason Honda developed the RC-51 to beat the GSXR-750, ZX7-R, and the Duc 996/998.
While Suzuki had the TLR available, they continued to go with the GSXR-750 as a race machine...
I would say that the TLR is a better bike. It all depends on what you feel more comfortable on. MY TLR was bone stock and would keep up with modded RC 51's on the track. Ask LDH he got a taste of it at VIR North course a couple of years ago. I have owned both bikes and the TLR felt alot more planted than the RC. THe TLR's stock suspension is alot better than P99