Ah , so it isn't just me . I think this is an issue , so I'll post a question on LM's forum, if they don't realise there is a problem it stands little chance of getting fixed.
@Doug . No simple recipe. All the maps are textured, I'm trying to get a not too polished aluminium so for me the reflection is too bright , but I am using p3d4.5 and I believe they have already toned it down.
albedo:- base colour is 186 on average with some noise and lighter/darker patches under the details. DXT1(no alpha)
metallic :- red:- white metal areas ,but darkened scuff areas and noise. black non-metal and panel lines.
green:- white base colour with some noise and darkening, so overall range is from 186 to 245. some false local shadows..... ( metallic has A/O) on
blue: -N/A
alpha:-base for metal is 195 but with noise and local dark/light areas , black panel lines . gloss paint 204, matt 6
normal :- old bump
Cheers
Dave