Bob - Thanks for the compliment. Your questions and comments are always welcome with me :-)
If you look carefully, you can see the dispersion screen groove Howard mentions in this picture (right). The "ungroovy" ones (left) usually have a thin metal ring spot-welded around the perimeter of the screen and a "dot" welded to the center, whose purpose is still a mystery to me. I've gotten both kinds off without nicking the gasket, but the ungroovy ones are more challenging (and I scratch the sides of them more ;-).
Thanks Dan! - as always you're a wealth of information...and I really appreciate your knowledge and easygoing nature. I have always wondered about the differences for some of the E61 groups being made by so many manufacturers.
Symbols: = New Posts since your last visit = No New Posts since last visit = Newest post
Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.