Unfortunately I think you are correct. Most guys flying pattern are flying computer radios that are a little higher up than the 6EX. It is a great radio, but its capabilities are limited. Most guys flying Futaba are using at least the older 8 channel and there are a lot of 9C's out there. Your higher end guys will fly the 12Z and the 14MZ, but they really aren't needed. A very smart next purchase would probably be of a higher class radio. Futaba's new 10C is a great radio on 2.4 and will last you for years. The 12FG is more expensive, but has some other advantages above even the 10C. The 10C however will do everything you will want to do with pattern aircraft. if you think you may progress onto some 40% IMAC stuff, then looking into the 12 channel radios is worth it. The problem with the 6EX is that the mixes are just linear. You can't control them at different parts of the mix curve. To really do this right after you follow some of the trimming charts you will learn that most of the mixes are now linear and really need a point mix to do them correctly. I know this isn't what you want to hear, but an investment in a higher level computer radio will serve you very well down the road.

Very similar to how you outgrew your Nexstar. Sounds like you are progressing very fast and an investment in a good radio is just that, an investment. It will serve you well for a long time.

Hope this helps,

Arch