@Kshah, even I was thinking of the same as per your points of shifting to a new operator. But then, something struck my mind. Now since MTS is started in Gujarat, we can buy one new connection and use it as a spare phone (im sure we guys have many idle phones lying somewhere) and check out the connectivity by calling fellow rimwebians (and disturbing them) or others or business LL calls, etc and checking its strength, etc.
Basically what I am trying to say is that, y wait until MNP and shift current number to a new operator and then test for quality. Instead buy a new connection and utilise its potential. Try everything, and then only in one jhatka, transfer your number to the operator which you prefer.
I am now testing the DCM network. Some of you friends might receive my calls just for testing, so be aware.. lolz.. Will be getting an MTS soon as I find time..