I returned to biking back in 2011 taking the direct access route, first bike was an R6 then another R6, followed by an BMW S1000rr. Now on a KTM Supreduke 1290, biggest difference for me was moving from inline 4 to the V twin. SO much engine braking and throttle control in the bends on the V Twin.
Like others have said you control the throttle, you will know when it feels right to move from 600 to 1000. The difference for me between the R6 and S1000rr, the 600 was more high revving and the S1000rr felt smoother for whats its worth.