That's a shame Ben, it's one of the reasons I sold my Optolyth. Although you can get the Baader to fit, I'm not sure if it will focus to true infinity.
What's the zoom like you have at the moment. Is it the 22x60 0r the newer 20x60?
Ron
At http://www.pt-ducks.com/cr-telescopes.htm#Our%20experience, you can see that it should focus if the serial number of your scope is higher than 126475 but will not focus if smaller than 125528. If within 2 serial numbers I can help if you take a photo of the eyepiece hole of the telescope, without the eps - the older version has a big ring inside reducing the diameter that is absent in the less old, so allowing the astro eps to get more inside and reach focus.
Ben, I don't think you would need to remove the glass protector. When I had my Optolyth TBS 80 it didn't touch the glass when the Baader was fitted. I'm using the Baader on my Pentax scopes at the moment, it's an excellent piece of kit. I’f you can get it to fit it would certainly be worthwhile.
Ben,
The Baader zoom reached focus on the older Optolyth 100, with the Baader 1.25" adapter removed but even with the larger ring where it screws in. Since mine is the MK3 and yours the Mk4, you will get even more focus range. Now you have to find someone to do an adapter ring in a CNC machine... Good luck!