True, but even though I really like the Innovatek clamp, I chose not to include it since I assumed it was indigenous to the WB itself. The others I listed I assumed could be used on most WBs. Of course, being new to WC, I may be wrong. I had not seen that Aquacomputer WB before but I assume its clamp is also indigenous its WB as well. Is there a US/English site that has more info on their gear?