I'd like to add another folder to my collection. I would like it to be a hard use / tactical folder with a 4 to 4.25 inch blade. Must be spring assisted or have a bearing system. I'd like another Gun Hammer, but they don't have what I'm looking for unless I go for an Alpha 3D Gun Hammer (4" blade, but around $1000). The RJ Martin Devastator is another great example, but again, too expensive (for my current budget). So far, the only knife on my list of possibilities is a Zero Tolerance 0560 or 0561. That knife has a 3.75" blade, so it's not quite what I'm looking for. I am impressed with the knife even though I've never handled one. Must be a clip point or a drop point. I would like to spend less than $300. Suggestions?