Thanks for the feedback Jase
I did use the HPF with an overlay hide all mask using the brush tool on finer details but I think the seeing wasn't the best as the DSE had been burning the day before and and we could see a bit of a haze lower on the horizon before dark so I guess we were imaging through it. As you advised we will check our date individually anyway.
Regarding imaging at 2350mm
We have to wait for our new Losmandy dovetail mounting system to arrive before we try 2350
should improve things now we're on the pier.
We're still using the Celestron orange dovetail at the moment which doesn't help with flexure