t h a n k s guys for all the response!
spray WD40 over all the parts involved & leave overnite (dont wipe any off) then rebuild. worked for me for yrs.
I'll give the WD40 a chance.
Also did find the installation sheet, "A" is on top and "B" is on the post, so I did it up side down (but do not think that caused the creaking...)
The only way of reducing the noise was to really swing on the the two allen bolts of the clamp.
One way to stop it creaking was stop riding
Ti Flites ( in my experience ) are notoriously creaky if the rails aren't lightly greased.
I'll try this as well, thanks
@elev12k: I did now see indeed one of the halves is more material removed buy the cnc machine. Looking into the instructions that I've found this one is to be attahced to the post, so the one with more material is for on top. And about increasing speed > that was the problem: the faster I'd go the louder the creaking
I'll check the tip of the month thread as well!