Hello, just want to make sure that the programing of exponential on the ttx650 is a minus value for soft around center as with my Futaba 6exa. I know that at one time some manufactures had positive for same on theres. The manual doesnt really specify this but shows anegative value in picture. thanks andrew wisc.

You are correct. Negative values in the exponential settings give you the "soft" center that you desire.

Thanks for quick reply!!! realy liking this radio. Andrew wisc.