That was me again
http://www.iceinspace.com.au/forum/s...d.php?p=595704
I have just updated the thread with one more post and photos of the result.
I should really replace my contact with the Trimbrite stuff. But I don't really need to. I now use Antares Twist lock adapters:-
http://www.iceinspace.com.au/forum/s...ad.php?t=50200
They pull up nice and tight on any 1/25" barrel and centre it well.