thanks Westy, after a recent crash ive stripped my 450 pro down and rebuilt. when i got to the tail i found that the slider wasnt moving very well (just a tad stiff). so this afternoon ive stripped the tail and found that i had gotten thread lock on the bushes when i had assembled it. ive cleaned everything up and used you tip for putting the thread lock in the hole not on the bolt. all is well now tail slider is moving silky smooth, just waiting for a break in the weather to maiden after my repairs.
Thanks for the tips and keep them coming.