Im running a dura ace cog and lockring.

The spacer leaves about 2 threads of the lockring off the end. This weekend im going to try to take the spacer out and space the chainring in to 1.5 mm. Im hoping that this will solve the problem. If it doesn't then i will go with the threadlock until i get a new hub.

Im worried a bit abot flex and general instability with 1.5 spacing in on the chainring. Im thinking about going down to a 105mm BB withing the next couple of weeks so i dont have to space in the chainring. I also was thinking about getting an actual track crank instead of the dotek road crank i have on it now. Would a track crank help me with the spacing? I'll have less than a mm clearance between the frame and chainring bolts if i go with the smaller BB and my current crank. Maybe then id be able to have the chainwheel on the outside rather than the inside then?