Have you tried these?

[COLDI]

http://www.panatime.com/24respbareyo.html

Whats your overall impression if you have?

I was thinking of getting some as it would be easy to switch bands out really fast during the day.

 

[merlin699]

I bought them to replace my stripped ones on the 177 and for spare for my 6152-1. They are top quality and when mounted you can't nearly tell the difference.
They have exactly the same diameter as the tubes.

 

[hooligan]

I use them on all my watches, even my gen PAM. It makes changing straps so much easier...