I miss my B-22 that was lost in a darkroom fire. Later Omegas are less apt to get out of alignment, and may run cooler, but the B-22 has character. Since alignment can be adjusted, it can also get out of alignment. Check to see if all corners of a print are critically sharp at large apertures. The heart of an elnarger is the lens. Some Omega lenses are mediocre. If your images aren't tack sharp with the lens stopped down a stop or two, look for a replacement. The price of top quality lenses is low; no one should settle for less.