Ahh yea, something else I've been debating. I found a 15% off code for Enco (the only free shipping I could find is for orders over $100) so I could get the import kit to my front door for about $60. The cheapest I found the Te-Co kit was $165 shipped from Amazon. That's a big jump, and I don't know how long I am going to have this mill. I'm already eyeballing a Rockwell knee mill...
I've never used clamps like this before, but I'm already not sure about the design. It seems like you have to get the step block height to the exact same height as your workpiece, or you'll be loading up the high side of the clamp, which will try to bend the stud. I've seen clamps that resemble a rocker arm from a car engine, where there's a bearing in the middle that levels the load. I like that a lot better, but then again, maybe I'm overthinking it!