Just wanted to give you a heads up, Royal Scots Grey is out on a 334 transfer move tormorrow. Also, this is running, along with the usual GBRf Alcans. I'll be going to Dalmarnock for the first two & either Singer or Dalmuir for the Alcans.
All the times that I've used it, it has had a pretty healthy load, but not a crush load. The next service to call at Singer after it, the 0821 to High Street, is one of the busiest services I've used. A crush load all the way to Queen Street.