Emerson's liner locks seem to have a lot of problems, and Cliff's recent Strider review -- though only a single data point -- is a cause for concern as well. At a lower data point, I'd look at the Benchmade Pardue axis lock with the tanto blade, which I think is called the 722. Closer to the price point of the Strider and CQC7, I'd way lean towards the SOG Vision series. I only have a single data point (the knife I've been reviewing), and I've only carried it for maybe a month, but so far the Arc Lock is strong and reliable, and the knife as a whole is very well done.
I offer my profuse apologies for not discussing the knives you asked for, but instead making other suggestions. But in this case, I really do think there are other options worth looking at, and since lock safety is an important issue, Arc Lock and axis lock tanto folders are worth considering (or re-considering, if you've already ruled them out).