I was just thinking about this while I was strolling through Adires DIY section. Checking out the Shiva and Tempest designs. I noticed that all Tempest based PR designs had (required?) 2 PR-15s on them. Now, I dont know everything about PR designs but I dont see why just having one PR wouldnt be bad. But I dont know. I dont. I just was curious. I would think that when you have one the Tempest would have an easier time driving just one. If it does have a hard time driving two. I dont know, I am just curious. ------------------ Yes, these are bruises from fighting. Yes, I am comfortable with that. I am enlightened.