Question for Iz regarding the new B757 FDE performance

Hello Iz,First I'd like to thank you for creating a 757 FDE for all of us PIC-heads :).I realize that the PIC FMC won't be able to produce realistic performance figures due to the weight difference between the 67 and the 57.My question is: Could you provide us with Realistic (ie. that match the FDE) speed booklets for different weights ? Although the PIC FMC doesn't give the speeds, they are, however, much needed :).Also, how will the VNAV mode work with the new FDE ? Will I be able to conduct my descents through the use of FMC as before, or will the performance of the new 757 be so drastically off-limits for the FMC that the usage of VNAV should be left alone ?Thanks for your time!rgdsTero