It's not the flush glazing that caught my eye, it's the thickness of the windscreen pillars (depth not width), they are brass thin, which in some occasions can be a downside where 1:1 locos are much thicker. Compare the depth of the Class 40 centre pillars either side of the centre screen to the recent class 31 which are typical plastic thick and no amount of flush glazing is going to mask that.
Even the JLTRT windscreen pillars and surrounds are way too thick and I'm planning on opening them out and adding a brass etch overlay to get a more prototypical thickness.
I took a picture of the pre production model at Warely and Reading, will dig those images out tonight and compare, either way it looks very nice and depending on price, a serious contender for what is recognised as the best so far (JLTRT). I haven't had one in my hands to measure but from what I've seen it captures the shape quite well indeed and I've no idea what variants they are going to do, builders, boilers, headcodes etc.
Which reminds me.....I must get on with my JLTRT one and my scratch build project LOL.