Here's what I don't get:
0566:
• Made in the USA
• SpeedSafe® assisted opening system
• Frame lock, lockbar stabilizer
• Quad-mount (tip-up/tip-down; left/right hand), deep-carry clip
• Steel: ELMAX®, stonewashed finish
• Handle: Textured G-10 front, stainless steel back
• Blade Length: 3.25 in. (8.25 cm)
• Closed Length: 4.45 in. (11.3 cm)
• Overall Length: 7.70 in. (19.6 cm)
• Weight: 5.3 oz. (150.3 g)
0562:
• Made in the USA
• KVT ball-bearing opening
• Reversible deep-carry clip
• Frame lock, lockbar stabilizer
• Steel: ELMAX®, stonewashed & satin finish
• Handle: Textured G-10 front, stonewashed titanium back
• Blade Length: 3.5 in. (8.9 cm)
• Closed Length: 4.8 in. (12.2 cm)
• Weight: 5.5 oz. (156 g)
So for all practical purposes, it looks like ZT built the same knife twice.
Anyway, if I were willing to carry a pocket brick, I'd hold out for the 0562 . . . and I'd especially hold out for the 0562CF. But I'm not. So this discussion, while interesting, is academic for me. I keep hoping ZT wakes up one day and builds a version of this knife:
XM-18, 3.0"
• Blade Length: 3“
• Handle Length: 4.125“
• Overall Length: 7“
• Blade Thickness: .140“
• Lockside Thickness: .125″
• Liner Thickness: .050“
• Overall Handle Thickness: .425“
• Weight 3.6oz
Could that happen? I hope so. In the meantime I've got my 0770CF to keep me warm.