Cheers Ian.
As i'm using liquid mask a bit more - I bought a big spray gun to spray the liquid mask. So far it's a HUGE improvement over brushing it on as it's very consistent and flat. Sprayed a couple of shells up this morning and dried in the sun - you almost can't tell that i've liquid masked them
Should make it a lot easier to keep track of where I have and have not cut
Still using vinyl for the details, so a combination of both as / when i can