I am a Jr user for the past 7 years "love the feel" Futaba before that for about 10 years. I am currently on the fence about the 10X. I currently use the 10SXII and it has served me well for the past several years and I have not found a reason yet for me to jump to the 10X

David,
I never owned a 10SXII, but my 10SX didn't have the flight mode function, if the 10SXII doesn't have flight mode capability that would be one good reason to upgrade to the 10X.

You indicated wanting a servo slow feature for flaps, well think about linking your flaps to a three position switch, and when you put the flaps full down you automatically have totally separate trims remembered for that flap setting. This is a very nice feature as it allows you to re trim completely all flight surfaces. Really handy for retriming elev and aileron to compensate for any aircraft flight angle changes upon flap deployment.

JR offers just the transmitter and case at a substantial savings over the complete system. If you already have all the receivers and servos you need this is a good way to go ---------
Lee