Amfiton TDS-5M sounds very nice once modified. It's a reverse engineered Yamaha HP-1, IIRC. I've not heard the TDS-5. I've read reviews that TDS-5M is better than TDS-5. TDS-7, TDS-15, TDS-16 Smela version and TDS-16 Kiev version also sound good to me. TDS-7 has bodacious clamping pressure. TDS-15 is my favorite for appearance with a Steam Punk look. I modified only TDS-15 and did a transplant of TDS-15 into Takstar foster fone...the link is in my profile, if interested.