This may sound dumb, but bear with me. I've been reading many resto threads lately. I always read cracks, accidental cuts, holes in the hull, gel coat, its all fixable. So I wonder, when a transom repair is necessary, why has nobody ever repaired it by cutting the outside skin? Pl it to the inner skin, and maybe even pl the outer skin back on and tab it back together. If this could be done and work seems to me in some situations and with some boat designs it could make things much easier if you were willing to deal with a little paint variation from touching it up.
I'm more or less just wondering why this can't be done, or is not ever the chosen method. On my old rotten boat this would eliminate removing the cap. I'm terrified of getting a distorted hull. And on stern drives you could leave the motor in.