After the initial trip to the paint shop I wasn't happy with the shade of Medium Sea Grey, it looked to dark. I'd cross-referenced the Vallejo number I'd used, Model Air 71.049 Sea Grey and it said it was Medium S G. Not so it's darker than Dark Sea Grey!!! So it was re-mask and back in to get a coat of Model Colour Light Grey, 70.990 which looks a lot nearer. Darker than some online builds but lighter than others!!!
Masking was done with Microscale Micro Mask and it's the first time I've used this. It goes on easier than Maskol, but you don't get the high(!!!). To remove you use tape, I used Sellotape but it didn't lift in all the places and I had to resort to a Q tip. Care has to taken to ensure you only rub the area covered or there will be touch ups required, see 2nd photo. Perhaps I didn't put a thick enough coat on in places to give the tape something to bind to better. I will use it again and see if that works.
For now it's back to the paint shop for touch ups!!!