Hi folks! I just recently set up two enlargers that have been sitting around for six months while I dug out a place for my darkroom. One is a 23CII-XL with Dual Dichro S colorhead and the other is an older blue 23CII with the Dichro 23 DGA colorhead. After set up, I attached lenses and threw in some negs to see if everything was working. Then I realized that I had no way to adjust the height of either condenser! After doing a bit of research, I found out that the knob must be removed for the colorhead to fit over the condenser housing and a shaft extension put in its place. I got around that by cannibalizing a focus knob to put on the shaft, but the colorhead must be removed each time to adjust the height. I work with various neg sizes and this could get very old quickly. I'll probably have to go ahead and call Beseler for the part, but decided to check here to see if anyone had a DIY solution. I don't mind pulling MacGyvers at Home Depot but this actually seems like a fair amount of work to make sure it slips over the shaft, attaches without scratching (hopefully taking advantage of the tapered end), and room on the other end for the focusing knob (keeping in mind that the inside of the knob is molded for that taper). Thanks for any help you can provide!