I have an LSH-P and an LSL-P. The former was purchased in Jan/Feb while the latter was bought a couple of months before. However, their TSP-123s seem to differ slightly in length (the newer one is shorter) and width of the "waist" (gap between LS head and TSP-123 when they're screwed together), with the newer one being much wider (and GOOD for syringe hold). I was wondering how many versions of TSP-123 are out there?