Niall: great to see you still turning out lovely rifles.
I know you like to leave the cut feel of engraving, but I have a suggestion I'd like to see you try. Take a practice piece of brass, and engrave a design. Now soak a cloth pad with Birchwood Casey's Super Blue and wipe down the brass, making it all black. Now polish off the brass again with 400 grit wet/dry and see if you like the effect. Your engraving will pop, and although it now won't have the cut feel, I think you might like the way your engraving is more alive. I used to do as you are doing now, but have changed over completely to the darkened cuts, and I personally think it has a better effect.