Hi I took about 800 frames with space of 400mb. Ran it through registax and tweaked it and then ran it through again. Then into paint to sharpen and soften a bit.
I am happy with it but still a lot of fine tuning my side to do. I have only had the a eq6 mount now for about 3 weeks and still learning that and registax. Once i get a good bit of time i will redo every thing from collomating the scope to doing the AVI's again. I did use a orion barlow lens as well.
I suspect your Mewlon will give you better ultimately. You could try recording a longer run and then be more selective with frames. Maybe 120 secs at 10fps and then select the best 350 - 400 to stack.