Thanks Richie. Useful info, too, especially the 'flux capacitors' effect on roof peeling Re the thiner white stripe, I just noticed the difference from photographs and approx eyeball measured from pics, but Jonathan's (the Oracle) explanation seems spot on. I'm taking a little poetic license on the roof colour because I can't find any 1970s delivery pics when they were presumably initially BR mk1 grey and I just don't like pure black roofs on the layout. I don't know how soon CIE would have painted the roofs black after delivery, or if they just did the sides. When I do the B&T GSV after next, it will be tippex era, so that will get the fifty black 'flux capacitor' peeling roof treatment. The next will hopefully be RPSI 3173 BCK in Maroon using a Bachmann donor instead of Lima.