@Tennisman IMO an expensive pure badminton maschine is very risky. You target just badminton stringers and stringers who buy expensive machines also tend to resell them to upgrade. A 2-3K maschine is just in the middle segment of stringing systems and most stringers would aim one day a Yonex, if they can afford. I would buy just an expensive machine which also could do tennis, because FME german tennis guys have deeper pockets than badminton guys. Just my 2 cents as badminton stringer, who also do tennis and squash on the side.