T Boom protectors may still be available here:
http://www.sunshinecoastsailboards.com.au/shop/components/sail-components/boom-board-protectors/np-t-boom-protector-detailOther companies also offer them:
www.mysticboarding.com/products/general/windsurf-accessories/product.php?pid=1689as well as Ion, North and Gaastra.
In passing, I bought 2 of the T protectors, cut one of the mast protectors off one, then had it sewn onto the bottom of the other, so that there was more protection along the mast if the mast struck the side of the board. No dings to date.