Hi Martin,
to The Lightbridge Club!!!!
When it clears, you'll see the amazing ability of this scope.
There isn't any difference between either set of knobs, just when I bought mine Bob hadn't released his yet.
The reason for the azimuth knob in the Rescue kit is that the bottom of the mirror tube scrapes over the top of the knob on its way through.
The solution is either buy a new knob, or you can sand down the existing top using coarse sandpaper. Then to finish it off use very fine paper for a smooth finish.
The reason that you don't need the lock screws is because now you have much stiffer springs, this will help keep collimation and makes the lock pins unnecessary.
Martin you've carried out the most important mods.
Others that you'll find important, powder coat the end rings black and eventually a dew/light shield.
Most of all enjoy your scope, and there's always help here when you need it.
Spacezebra (Petra) bought cases for her 12"LB, I'm sure she can help.
For ease of collimation go to
www.andysshotglass.com there is a easy video that takes you through it.
Have fun, John.
