considering changing the creaky BB30 Hollograms on my Cannondale to Dura-Ace 9000

anyone used the Praxis Converter?

http://www.praxiscycles.com/product/shimano-conversion-bb/

Use one on a Specialized frame (so essentially the same but just a different original BB) and it works perfectly. if it gets very wet take it out, dry it, regrease and you are fine. Has never creaked since I had it fitted almost 2 years ago.

had a wheels manufacturing one in my Specialized Stumpjumper (PF30 convertor) and it was constantly creaking and coming loose despite being fitted correctly; only thing holding the cups firm against the inside of the carbon BB shell was a thin “o” ring on each cup! Once these start flattening out, nothing holding it firm.

replaced with Praxis Works with expanding collet design which grips the inside of the shell when tightened, and no issues ever since, so highly recommended!

good stuff, thanks