Thanks NucMedTech.
Inspired by the use of Tremclad silver mentionned on this very group build, I have found at my local Canadian Tire an amazing solution to my age-old problem of metal finishes!
I did not find the particular Tremclad gloss silver I tried useful, but I got stunning test results from a skinny 227 g can called Krylon Premium/Prestige "Original Chrome"; absolutely the most amazing stuff I have ever seen! It is a complete revolution for me who thought my metal finishes would always look "pebbly", grainy, or would always have a that "transparent", flaw-highlighting look.
This stuff is ABSOLUTELY grain-free, very opaque to boot, and so metal-like you can see yourself in it, indistinguishable from real metal! If I can't find a useable color variation, I will hopefully achieve something similar with selective slightly tinted matt varnish.
Because I have never and will never use a compressor, and the cold air of a Co2 can freezes acrylic paint inside airbrushes for me, I am limited to the much less clog-sensitive Badger spraygun, which only needs strip-down cleaning once a year if ever. This set-up does not work with Alclad or most other metal finish paints, because the spray gun has heavier droplets on the outside of the spray, creating matt silver spots on the edges of a pass. Not a problem however for Tamiya camo paints...
I could never figure out how the poor coverage of Alclad paints is supposed to work anyway...
Even a regular airbrush/compressor set-up is probably not clean for long enough to get full coverage without stoppage or spitting on a large subject like the B-29. This Krylon can stuff appears completely trouble-free in comparison. Oh, and $5 versus $100 worth of Alclad might also be a consideration...
My B-29 will now be the "Lucky Lady", from my treasured, and discontinued, Pyn-Up Decals sheet, with a corrected short-neck four-gun turret, perhaps fully engraved (although wing tops only), and with the temperamental, and slightly squared-up, Cutting Edge cowlings.
The tail gun position and rudder chord is already modified shorter. Last but not least, a major modification was adding 1/4 inch to the fuselage between the top rear bubble and top rear turret, to match the actual lenght of 99 ft., as opposed to the kit's 98 ft.. This could be done only by cutting TWO kit fuselages in different places; laminating a plasticard "stretch" join would, for some reason, not maintain fuselage symmetry. (Don't even try!)
If I had known I would do a metal finish and not camo, I would have done little of that last paragraph; for the totally obsessive only. We B-29 fans can take heart that the Monogram's B-17G's excessive fin chord is actually worse, and is not confined mostly to the rudder's too-slanted trailing edge angle as it is with ours. OTOH They do have better props and cowls...
In any case, that Krylon Premium/Prestige "Original Chrome" spray can is worth a try; you won't be disappointed: It has been a revolution in my build options...
Gaston.