HTC Desire :: Radio Files - Flashing Rooted Phone

With regard to phone calls dropping when on a nominal h/3g connection (as when I'm in the house I have a 3g/h reception 2 bars but when I pick the phone up it seems to drop out to g after a few seconds so if I answer a call on 3g/h a few seconds later the phone switches to g and disconnects me poor signal in the house I think but very annoying as I have to keep the phone on g only in the house and use WiFi for browsing at the moment)). I searched for some ROM radio files to flash to my rooted phone and found these 3 roms

[Radio ROM] Desire Radio Roms - xda-developers

Was wondering if anyone has looked into this and if there is anymore (possibly updated files) out there. At the moment I have downgraded to file 30.34 as this radio file seems to switch from g/3g/h the quickest and it's a bit more stable (still cutting to g connection once I've had the phone in my hand for a couple of seconds (think due to the receiver being in the bottom of the phone as someone else has reported), will check it's progress but all files give a similar reception.