In order to prevent problems while welding up the seam, we first fill these holes carefully using the TIG and a thick piece of filler rod – this is a tricky procedure that I have perfected over the years because E-types have SO MANY dent-puller holes in them – AAGGGHHHHH!!!!! These were especially tricky because some of the wing metal was really thing from past butchers grinding the hell out of it – and many of the holes were right on the edge – PLUS it was all vertical!