First thing is that all ST spraybar assemblies aren't created equally. Is this a authentic ST needle or a generic copy claiming it's a ST? While they have good adjustment, they're not always leak proof. I've had some where I would replace the collet with a black harder fuel tubing I use for my bladders. This would provide a seal and also friction to the needle to keep it in place. ST needles have a bad habit of loosening the collet when the needle is turned and when a engine vibrates. I would be curious to hear the results if you lost the collet and installed some kind of tubing over the spraybar and onto the needle. Ken
I reinstalled the ST (?) needle with tubing in place of the collet, wired and twisted over the collet area and over the needle itself as tightly as I dared.
The needle threads are such a sloppy fit it would shock a Fox!
My jury-rig wouldn't hold setting for flying (not enough friction) but on the bench it seems to be better than with the collet, tho' certainly no better than the OS remote.
At this point, I'm still liking the remote.