Yeah, some people on here don't like it when you use filters. I guess they think it's cheating. I'm not too concerned about it though. I didn't feel the need to use a middle welt layer since I used rivets to fasten the two pieces together. I don't know if it's great minds or not, but if it works, then it's a good design - form follows function and all that. As for the spelling of 'axe', I guess I've always used the English spelling without thinking about it - spell check never questioned my use of it here in the States lol.