The main advantages of foam building are:
- Greater range of flexibility
- Ease of building over Pepakura (though I personally prefer Pepakura to foam)
- Lightweight (fibreglass builds can weigh an awful lot)
- Doesn't the "flexibility" aspect become nullified after applying resin, bondo, or rondo (each of which will "harden" the foam)? And if it were indeed to remain flexible, then wouldn't bondo or paint crack if the foam flexed too much? (Unless flexible paint is used...)
- Having worked with both foam and Pepakura, my opinion is that foam is not easier - but that's just my opinion.
- I really don't think foam is that much more lightweight than paper, especially if bondo and/or rondo is applied to both. Overall, I'd probably agree that apples-to-oranges foam is lighter (assuming more finishing materials are used with paper than with foam), but I'd counter that the finished Pepakura is probably more durable than foam in the long run.
So besides a potential slight weight advantage, I'm still curious why foam boots (the armor pieces which would take the most wear-and-tear)...?
(I'm in no way criticizing the decision, and the work looks excellent as usual - just trying to understand better the rationale.)