You lucky duck! Response time was quick! What is your price range? I bought a Futaba 4PX from a fellow racer and it’s great. Go to your local track(s) and see what racers are using. Ask questions, ask to hold the radios, and the racers may even let you drive their cars with their radios. Look up the features of each, and there are a bunch of threads about this on RCtech. Please respond quickly, as I prefer fast response times as well. Ha.

If you want and like spektrum, then get one. They’ve always felt cheap in my hands, but that’s just me, my feel, and my opinion. A new Futaba 4PV or 4PM should cost you about $250. People sell nice used Futaba 4PX radios on here for $350 with a case, batteries, and receivers all the time. I don’t know much about Sanwa. If a certain radio/radio brand is very common at your tracks, there will be much more people to help you with yours. That said, it’s okay to have something different. But if nobody has the radio/radio brand you do at your tracks and LHS’s, you’ll be stuck with only us fools on RCtech to do what we can to guide you.

Futaba 4px here’s a listing. $250 shipped for a new looking Futaba 4PX. Just one example. It doesn’t say it comes with any receivers or a case. You can get receivers from Dialedhobbies.com for a super price of $35ea, I think. A radio case for $40-$70 and foam insert for $5-$15. If you decide to buy a Futaba, I suggest you hop on that listing and grab it before someone else does. Looks like a nice deal to me.

I just switched from a Futaba 7PX to a Fly Sky Noble NB4.
Believe it not not I felt more connected to my car than with the Futaba 7 PX. The response time on the FlySky is much faster.

https://hobbyking.com/en_us/flysky-n...receivers.html

Sanwa M17 is the best imo and has the fastest response. I have tried many