She's looking good macattack, never tried blutack for masking, I've recently switched off masking tape and onto parafilm, I'm getting some nice results with it. It doesn't leave any residue, and if you dont stretch it too much paint and varnish won't soak through. You do need a steady hand and a very sharp knife to cut it, but it means now I can glue on canopies before primer, paint and varnish. My models are looking sooo much better for that now!