Originally Posted by harryconway
It's all pipe dimensions. Some cymbal bottoms/tom stands will work, others won't. I believe the standard Pearl tom arm is 7/8 inch. I have Yamaha tom mounts (and Kima) that accept 7/8 inch tube. The down tube off the triple head is a larger diameter, 1 inch. My Kima bottoms are almost exact copies if Pearl bottoms. Whether you go Pearl, Yamaha, or someone else, 1 inch is 1 inch. That's basic size if you're going for a double tom stand thing. Finding a cymbal stand bottom that accepts the smaller pipe size (7/8) is do-able as well. I can run a single tom arm into a cymbal bottom (without the use of a Yamaha/Kima triple head), but it has to be a 7/8 inch stand.
Thank you for the great information. It will help me in my mounting decision.