Welcome mate. I am in the prior same position you were in. Currently got a GSXR750 k8 and debating about the gsxs1000. How do you find the performance differences?, acceleration, 3rd gear pull etc.
I have had a go at easter but in severe heavy rain/wind, so still undecided. However, another test ride coming up on the 25th (hoping its really dry) to get a proper idea and hopefully make my mind up.