Thanks all.

I still haven't plucked up courage to take the leap, but another option has presented itself after some reading...

What about if I change my 203 rx for one of the 304s? That should allow me to use T-FHSS from my 3pv?

Has anyone switched from S-FHSS to T-FHSS and noticed a difference with the same tx and car etc?

As before, grateful for all replies!