the best method Imho is shoe goo and fibre glass matting/cloth,there's a couple of types,there's a stringy matting/cloth that the fibres pull out easily and it's messy as hell to work with,the strands never stop pulling out when applying and smoothening the shoe goo over top of it and then there's the fibre glass matting/cloth that's more like a weaved together matting with continuous strands,looks something like carbon fibre which doesn't have all the short strands in it,nice and clean to work withfit the pieces one at a time,apply a generous amount of shoe goo on that area of the body and apply the matting quickly, pressing it tightly/smoothly into place and apply another layer of shoe goo over top of that but only once the first layer of goo and matting cure up a bit and smoothen out with spit and finger quickly,you don't have much time before you can't work it anymore
works perfectly every time as long as you work somewhat quickly with the stuff and it looks professional afterwards,a friend of mine showed me a B body that he had done and I didn't believe him it was done with actual shoo goo and not a spray on type of glue,not until he did a few sections on his 1/5 SC body in front of me.we all know shoo goo isn't the easiest,cleanest or nicest poop to use but when done properly it really can't be beat,my most unfavorite job of all by far but well worth it afterwards
problem with the drywallers fibre tape is that it'll keep lifting out of the shoe goo and you have to keep pressing it back into place until the shoo goo starts to cure/tack up a bit,a real pain when your doing a full size body