I was able to see and shoot a Dominator last night and I can now see why the cocking lever on my Walther ProTouch match rifle fouled the scope whereas the Dominator cocking lever clears it so easily.

The cocking lever is a different shape altogether and has been designed for use with a scope.

With that in mind, I think I will sell my mint Walther ProTouch match rifle (rather than try to modify it) and use the cash to buy a good Dominator - or maybe an LG400FT.