Hi Bram, thanks for that.
Your settings are quite different from mine but so is your setup but at least it gives me some ideas to play with. If I can understand your settings I can possibly interpret mine better.
For the time being I have added a laptop to the mix running the new PHD2 software (the advantages of a permanent Ob setup and spare PC's) and for good measure 're-engineered' the guide scope mechanicals.
Now to wait for the clouds to clear .. and I didn't even spend any $$$ .... Sheesh !
All the best for the New Year.