Actually, you can use a Hitec with any brand of RX. The only mfg. servo plug that won't go into another mfg's RX is Futabas. Futaba's plug has a tab on the side that stops that male plug from going into any other mfg's receivers.

And there is a very good Hitec servo that is actually a very good choice for aileron servos where the application asks for standard power servos. The HS225BB is sort of a well kept secret for a number of uses.

Your standard servo....... let's take an example of one.......
The Futaba S3001 is a standard ball bearing servo that is about $20.
It weighs 1.6 oz puts out 44oz-in in .23sec.

The Hitec HS225BB is ball bearing and is about $22.
It weights 0.9oz and puts out 56oz-in in .14sec

The use of HS225s out in the wing saves you over one ounce overall. And it's extra good to have less weight outboard to boot.
Plus the sucker is actually stronger than most standard servos, and as quick as most. And obviously quicker than some of the old standbys.
And it's a mini in size. Not a biggie about the size but all three other parameters are winners. Big winners.

I usually use three of them in every 46 to 60 size airplane. They're also in a couple of 90size and don't break a sweat.

And their plug goes into any mfg's receivers.

But shhhhhh......... don't let the secret out.