I've done DE's with two NASA clubs, three BMW clubs, and a few others. The two NASA clubs are different, and the three BMW clubs are different. I like running with one of the NASA clubs and dislike the other. Same with the BMW clubs. I love one, like another and dislike the third. But the things I like and dislike aren't necessarily the same things you'd like or dislike. So, I recommend trying them all and see what you prefer. Sorry, best answer I could give.
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