Bearing Change

[Jamez]

How often would you say it's best to do a bearing change?

Actualy got near the field today but ran into problems with extreme head speed and no lift. Got a pitch gauge out and checked, -4 bottom, +5.5 mid, +11 top nothing wrong there, but found play in the blade grip bearings. It is a Shuttle, so play was expected but on closer inspection found that as the play was taken up by the blades as they lifted they were twisting slightly and dropping of virtualy all the mid stick positive pitch........ down to about +1.5 to +2

So anybody got a time scale for bearing's, or is it change as they wear?

[robgt]

Yep, change as they wear.
If you have a feeling something is wrong with them, it's always worth just popping out the bearings and running them around in your fingers to feel for any grittiness in there.
If they're not smooth running, I replace mine.
I buy them from www.modelfixings.co.uk - not the greatest website to navigate, but has everything I need and the prices are excellent!

Cheers,
Rob