i purchased a futaba T6K V2 couple of months ago. The V2 is 8 channel (not 6!)
Brilliant TX.. it comes supplied with the 6 channel receiver so if you want 8 you would need to buy the receiver separately or speak to the model shop and see if they will do you some sort of deal if you could swap the 6 channel receiver for the 8 channel one?
Also has Futaba SBUS technology which if you are not familiar with, allows you to connect multiple servos in a "Daisy Chain" from one channel and allows you to program each servo independently via the TX its self (no separate module/program needed!), so even though the TX is 8 channel, in theory it can be much more. But for this your servos need to be Futaba SBUS compatible!
but all in all, great piece of kit & you know with Futaba you are getting quality & reliability which is the main reason i bought Futaba, yes, you pay more, but its worth it for that piece of mind :)