According to signage, some of the departure stands at Stockport Interchange are to be rearranged from Sunday 20th July. Stand Q, the one stuck out on the opposite side from the main part of the station, will no longer be used for the 199, 313 and 391 routes. This is significant because it eliminates an extra loop round the bus station one-way system that those services have to do in order to serve stand Q and then exit the station at the Mersey Square end.
IMO this change is sorely needed (in fact I wrote about the issue on this forum a few months ago) - given that extra loop has to be done at 5 mph, stopping repeatedly to give way to arriving or departing buses, it can sometimes add 5 minutes or so to the time taken to serve the Interchange. Particularly on the 313, which is rather tightly timed and often seems prone to unreliability, being forced to spend several minutes of each trip driving round in circles is highly unwelcome