Many thanks for your comments guys much appreciated.
Peter, I have to agree, but i kept the subs a bit shorter because the temp was still sitting at about 12 degrees, and my LP limit kicks in at about 7-9 minutes depending which direction i image.
However I will try and get some more subs tonight if the clouds hang on and see if there can't be an improvement.
I have to admit I have never tried this stunt before with the gemini, all is the same as i left it last night, and I intend to fire it up and start again from where i started last night.
Many thanks.
leon