Honestly,follow your heart.There is no particular pattern and moreso there is no first come first serve rule with them.Will be 2 months on the 8th i paid the RPRF request and till now,they havent even reviewed the additional docs provided.Can be frustrating but what can one do but wait.I was thinking if I pay the RPRF fee now, at least I would have some peace knowing I have paid it and it will be like some progress.