I don't know why you suffer such a long time resolution, complex item? for me, I'm seller ( full time export job for a company / retail part-time on billiard parts), but also I buy a lot of things. I know both pain. when transaction smooth, no problem. but when have issue, will judge seller good or bad & if you are doing the right thing and stand for your client, buyer just know it. I think most seller are in this way, you may meet bad example. anyway though this business is not my main, I do take it seriously too, will try go as far as I could.
go back to the tip shaver, the problem now is not the price or origin. but this tool is new, nobody know it. once it proves good by wide sampling in third party, I can make bundle quantity & offer a big discount price. then whatever the buyer take, willard or this one, it's market decided.
what I'm thinking now is that I take 1set sample, and transmit the tool from one ppl to another, 3-5 testor who interest to try or buy it, write review here after tried and transmit to next testor. if the tool proves good, testor get special offer for this tool. if the tool performs bad, no big loss for everybody.
send me email if anybody wanna try in this way.