That's what's great about this group. We share ideas and every one has their version or improvements. Everyone benefits in the end.
I have yet to really test the stock 12mm bar I installed. I agree with Danny that a 15mm bar would be the perfect size, for a Spyder at least. More testing is necessary. Finding a bar around 15mm or 5/8s is the trick.
I just got my Sportracs installed, time to go do some testing.