Mummystar
Whilst I don't have figures specifically for DLA MRs, our normal expectation is that the process will take 5-8 weeks, they can take longer due to other factors, for example; at the moment we are seeing a slow down due to Summer holidays.
If you have not contacted the DWP in the last couple of weeks then I would chase them for an update.
You can contact your MP, it's amazing how their involvement can galvanise the DWP into action.
Contacting your MP Again I do not have figures for DLA, but revision rates in general for MR are very low so don't be surprised if you have to go onto appeal, which could take many months
You can make a new claim at any time, there is no wait time.
Gordon