glass joints are bad news, almost everyone lays the tape and glasses it, then you've got a sudden change in material strength and a weekness waiting to strike, the way to do it propperly is to lay a diamond shape so the glass tapers out, then the epoxy should go a bit beyond that. personaly i dont glass, i use cloth medical bandage and PVA, its thinner, lighter, almost as strong, and much easier to cover over.
For this plane i think i may lay a 1/4x1/4 "spar" down the centre of the cannard