Possible to image the Cassini Division with a 127mm Mak?

[bus_ter]

This was my best effort last night. I'm not as happy with it as I was with my Jupiter images. I'm wondering if anyone has managed more resolution and imaged the cassini divide with one of these popular scopes? And if so do you have any advice..

Taken with a Mak127, spc900nc (with LPF fitted) and maybe 400 frames stacked and 'wavelets' in Registax.

Thanks for viewing

[riklaunim]

It would probably need higher histogram fill (brighter) + better seeing + perfect focus +/- maybe also some filter cutting out blue/part of green to limit the seeing fringe without loosing to much light (for a color camera, for mono planetary cam - IR passing filter)