while i'm a stone-cold newbie to building foamies, i've been scratch building balsa planes since the very early 1950's. those were the dayze of nitro paint over stretched silk airframe coverings. yeah, i'm old, and i've built and flown fixed wing model aircraft within nearly every AMA flight discipline.
i looked at some of the old and new DT foam boards a month or so ago (nope, none left, and definitely none bought by me) - they were terrible, all warped and badly rippled. that stuff was pure junk for model plane building.
so i bought a case of FT WR board. yes, shipping is expensive - and just wait 'til you find out how much the rates will go up next year. the double boxed foam arrived and though every single sheet was Dead Flat, all were horribly rippled to the point they would never make viable airframes. i sent pix of the boards to FT and much to my surprise, FT immediately shipped out another box. big kudo's to jen! the new batch was also dead flat, but there was/is a very slight "wave ripple" to all boards. significantly better, but not perfect. it will hafta do just fine.
alas and alack, i suspect that searching for perfectly dead flat non-rippled foam board will be like don quixote's dragon quest. i sure hope i'm wrong. i always looked down on foamies and now the "enemy" is me. foamie building and flying is just too much fun. but clearly at the central heart of this branch of model airplane building is the foam board. without that, building will always be a fight of sorts, and not a flight.
cheers,
rob.
Besides it's summer here (supposed to be 118f tomorrow!) so I don't like taking my hot glue and foam planes out (the glue tends to just fall off after about 10 minutes) and I'm too impatient to use more permanent glues 
