Well, I just ordered the new Altair 150EDF after reading the Sky at Night review which says they have zero colour aberration, and being a doublet which I like the idea of.
I'm local, so I viewed it at the shop in Aylsham UK. Had a long chat about the design and the lens cell certainly looks right. The 125 is essentially perfect and can be classed as APO unlike a 6" ED I've owned which doesn't quite get there, and the images in the review are very good so I'm pretty confident my search for a big ED is over, feeling positive!
I may sell my 125 which I lot more now for lunar observing (my thing) seeing my health has improved considerably after some procedures - and the weather has been warm, though dewy in the UK. I'd like to keep it but I can't see myself getting a mount able to heft them both.
I naturally asked for the one in the shop but they explained it's going to a UK show and then a US buyer is getting first refusal.
Has anyone done the same or been tempted? It's big, that I can confirm. The tube is very nicely made too.
Anyway I'm on the list!