Recently, I was perusing Apogee's videos, and the construction build for the Zephyr came up. I have to say that I was pretty impressed by the way the fins and the CRs were set up. Now I'm wondering... Why don't all MPR/HPR vendors use slot and tabs for fin alignment on TTW designs? So long as they're using a laser cutter, or a CNC machine to cut their fins and CRs, it seems like a small amount of work needed to result in a large benefit to the customer. The biggest benefits I can see is easier assembly for the customer, no more fins that are out of alignment (also improving aesthetics), and reduced roll in flight. Largest drawback *MIGHT* be some reduced strength of the fin due to the smaller tab, but with the slot holding the leading and trailing edges firm, I'm guessing that this would be negligible. Thoughts?