A lot of your letters from crossworders make reference to white-out. The Parker erasable pens are available from the bigger office suppliers, and possibly newsagents. I did receive one from you many years ago and have found them so great to use. I always have a spare pen in the drawer as they are used quite a lot when doing your puzzles.
Because of bad weather my last two issues of BIG arrived in a soggy condition taking a fair amount of time to dry out the pages, and leaving the paper somewhat crumpled and in some cases difficult to write on.
Otherwise, no complaints. I enjoy all the varieties of puzzles keep them coming!