Thanks Paul, Allan, Vickers and Matt, much appreciated. The wings were attached last night, here's my high tech wing jig in action:

The wings have set nice and straight thanks to Przem's suggestion to avoid "droop".
I know you are using a decal but do "we" have an FS number for the Feldgrau? I have an Eduard 1/48 EIII calling me.
Allan, afaik there are no original samples of this fabric, the feldgrau is an educated guess that cleverer people than me have come up with from studying original photos. So no FS number, go with what you fancy......
Love it - some of these eindeckers looked like they were saturated in castor oil and you?ve captured this heavy staining really well.
Thanks Matt, fortunately there are a couple of photos of the aircraft I am building so I have tried as much as possible to replicate the weathering from those photos. This one was pretty heavily stained in those photos.