I have the LFTi as well, I suggest you get it sharp and test out its cutting before sending and paying for a regrind that it may not need. I started using it pretty heavy right away and I'm pretty happy with how it cuts for a tanto. We got a new Ikea couch and chair recently, they come boxed in heavy card board. I broke it all down into recycle-able pick up size, I'm talking a LOT of single and double wall cardboard and it zipped through that stuff no problem. It stayed very sharp as well, just wouldn't shave afterwards but a few per side swipes on some fine ceramic rods and it's good to go. I destroyed some old carpet with it and was most recently (just testing, shaving off pieces of this tough stuff) cutting that faux deck material that seems to be really dense plastic, I couldn't believe it didn't damage the edge. I wanted a ti framelock in something that wasn't s30v and so my foces wasn't on needing the M4 but I am very surprised and happy with this steel. Easy to maintain and no chips so far! I have read people say BM haven't optimally heat treated their version, I can't say one way or the other I just know it performs very well as is.
