I don't recall ever seeing mushroomed peg heads. But I have seen clientele drive a peg with a sledge hammer....... the draw was tight..... the peg sharp.... it went in right but was driven out the side of the timber! after making it through the tenon the peg was pushed off alignment. I heard way to much pounding and came to look. Always entertaining to have extra "help".
I resemble that remark! Well... It wasn't a sledge hammer, but I did manage an excessively drawn spline fitted into a narrow (10cm) beam where the peg split the outer face of the beam as a consequence of the angle it took through the spline. No major damage done, but embarassing nonetheless!
I guess this sort of learning is what first builds are all about! :-)
