At this point in time, there should be a limited number of J-11 (not J-10 however) with the WS-10A being used for initial operational trials, probably deployed with a number of selected regiments. I am guessing that the 1st Division is one of them. J-10 seems busy right now transitioning the TVC nozzled AL-31FN before it gets to the WS-10A. Going from the TVC nozzled AL-31FN to the WS-10A without TVC would be a downgrade on the J-10 and I don't think that would happen until China catches up on its TVC research. So until that happens, the J-10 is out of the picture with the WS-10A, even though it's documented that China is indeed working on its own TVC nozzle.
Recent report from KANWA appears that more J-11s appear in Tibet, which means Lanzhou MR. The numbers appear like 19th Division planes. Might suggest that the older Su-27s from the 19th Division may have moved to Lanzhou MR, and newer J-11s have taken their place in the 19th Division located in Jinan MR which is the east coast of China.