Merchant
last time I heard WAT was not a PSO route port.
KIR, GWY, CFN, SXL are RE's PSO routes, with Loganair on LDY. All the PSO routes are ex DUB.
RE have expanded quite quickly, but maybe growing pains have hit. It's a pity it doesn't combine or ally with another ATR operator... maybe one with a dragon on the tail.
Any RE folk out there in the know? Knowledge of which routes are PSO would be a start...