hi monoxide. it doesn't affect collimation/operation at all as now i have place the washer infront of the colliation screws.
Here's a pic what i mean:
http://www.iceinspace.com.au/forum/a...2&d=1158044224
Because the secondary holder is made of 'soft' plastic, each collimation session, the screws were drilling into it. Another way to fix this is by filling the holes in.