See Futaba is smart. They KNOW us racers will buy the latest and greatest. We might B and moan for a little while but ultimately...then they took it one step further. See, if it was just for the touchscreen, I personally wouldn't really care. I run Spektrum for my nitro cars and the 6R while cool, wouldn't be worth the extra coin to upgrade from say the 4R (I upgraded from a DX4C so yes it was worthwhile for the 5.5ms). But Futaba in all their marketing wisdom, drops a big old SR at the end of the name. SUPER RESPONSE! This and a new R324SBS 4-channel multi-antenna diversity receiver. You KNOW you want that because it's the only reason you're not winning right now.

Seriously though, with today's tech I'll bet that a software upgrade would allow the 4PX to utilize the new tech. Will they do it and rely on the touchscreen to sell it? Doubt it but us 4PX owners can be hopeful right? I foresee a lot of R304sb's coming up on Ebay soon.