As some of you may know, I am refurbishing an old Celestron 22" for the University of Nevada at Reno. As part of that work I am fitting new worm gears on both axes. The RA gear is a custom 21" 360 tooth gear with a 14.5" gear on Dec. I have never been happy with the Lubriplate #105 I have used for years on worm gears. Over time it breaks down with the lithium portion getting thick and the oil portion getting gummy. So I went looking for a new lubricant. My test setup was the 21" gear with moderate spring pressure for the worm engagement. With the Lubriplate the average of 5 measurements of torque on the worm was 43 oz-in. With the new lubricant it was 22 oz-in. The new lubricant is Super Lube Synthetic Grease with Syncolon (PTFE). It has an operating temp range of -45 F to +450 F. I bought a tube of Item # 21030 (3 oz.) on the Internet. How this grease behaves down the road I don't know but by cutting the worm torque almost in half I'm willing to see. Jerry Foote ScopeCraft, Inc. 4175 E. Red Cliffs Dr. Kanab, UT 84741 435-899-1255 jfoote@scopecraft.com