I own a few Ken Onion design SpeedSafe knives; a Chive, Scallion and Shallot. They are all great knives, but I've been EDC-ing a Buck Sirus and compared to the Buck ASAP system, the Onions open slowly. I like the steel, and the design on the Kershaws. Are there any of them the open reliably and quickly? The difference was enough for me to put my Onions up for sale.