Are you going to paint the struts flat black? I did on my LB 12" when I flocked the insides of the OTAs to reduce glare. Long ago I painted the white tops and insides of the cast rings that form the OTAs flat black as well. I don't understand why a manufacturer would paint anything white or silver that is in the optical train of the instrument. With flocking, black struts and a black shroud, all you can see when you look down the scope is the primary.
The secondary collimation screws you have created are interesting, using rubber feet for the knobs, but they look a bit over-sized and might be occluding the light path (i.e., sticking out past the profile of the secondary mirror). A trip to a local fastener supply store might yield a nice set of screws with more appropriately sized thumb wheels for dirt cheap. (Live in Ottawa? Ottawa Fastener Supply is the temple of fasteners.) You can buy a plastic thumb wheel that compression-fits onto the head of a standard Allen socket-head bolt; e.g., https://www.mcmaster...d-mount-knobs-6. (They sell them in qty 100, so a trip to a fastener supply store is advised.)
Barring that, Bobs Knobs sells a nice after-market set of screws and springs for both the primary and secondary. My LB is well over 15 years old, but when it was made, the springs supporting the secondary were under-spec'd. The stiffer springs made a big difference in getting the scope to maintain collimation.
Edited by yeldahtron, 02 June 2020 - 12:56 PM.