Microtech is a business and Tachyon is a product. In the balisong market, Microtech is going up against a strong, entrenched competitor, Benchmade. In that type of a situation, a smart business does something to differentiate their product. Microtech certainly has done a lot of differentiation with Tachyon. The finish, the skeleton pattern, the "sandwich" construction, the double tang pin system, the blade profile, etc. Don't be surprised if they differentiate themselves on length too.
Benchmade casts their handles. Casting requires making tooling. That's time-consuming and expensive. But, once you've made that tooling, you can make the parts very quickly and inexpensively. To change the part, you have to make expensive, new tooling.
Microtech, on the other hand, has elected to CNC machine the parts that make up Tachyon's sandwich handles and then to hand-assemble them. Their cost per finished part is considerably higher, but they can change the parts pretty easily. Programming CNC machines isn't free. It can take a skilled operator many days of work to create just the initial programs. On a complicated multi-part assembly such as one of Tachyon's handles, it may take weeks, many tests, and many tweaks to get everything "dialed in," as they say. But, it still beats the many months of delays involved in casting.
So, with their more versatile construction technique, don't be surprised if Microtech does eventually offer several lengths. Right now, though, I don't want them to even think about that. I want them to focus on getting that first product out.