yeah, i think the futaba 2.4 GHz should be faster and better cause it's specially made by futaba for futaba transmitter.

However, in this part of the world , such good stuff is not yet here. Moreover, if it's here, the price is going to be far higher than what you guys are paying.

As for my spektrum, I have 2 transmitter module and 5 receivers. Upgrading to futaba would also mean i need to buy 4 more receivers to fit all my car line up.