Hoping for some good advice. I got a few vintage bikes with threaded forks. I actively ride them. I'm trying to find a good setup in the cockpit for ultra long distance so am buying a couple different hb, brake lever, aero bar setups cheap off ebay. I'm guessing a clamp type stem would make swapping different setups easier. Any one had experience or thoughts on this? What's a good adapter. The ones I see are 2 bolt clamp, is that enough? I'd hate to have it slip. This will be alloy. Either or both 26mm and 31.5 (?).

Thanks
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PS - I just saw a discussion from 2009 stating this is a reasonable option, and I see the gear available - Anyone have any pros/cons they care to share? Thanks