Hi!

I must admit that was our fault, because we did not double check the measures that I got from User on this forum, I think It was Pete.

What I can recommend is to drill the holes holes, so it would fit. (about 1mm each hole. We will have new tops made in one week, then we will send every end customer that has already bought the block new top with new o-ring, so he can replace it.

Sorry Guys, well fix that ASAP