are you using the TL01 arms, if yes, TL01臂用既pins are fine.
If you are using the TL01LA arms, you can still use the body-end pins but the wheel-end pins. If I remember correctly, the wheel-pins are TA04 ones
Last time I tried it in TRC, the handling is quite good. However, the downstop cannot be controlled directly like FF03. So, some o-rings have been placed inside the dampers to control the downstop.
yes, there is no down stop setting screw in the TL01/ M03 / FF02 series. we need a lot of time to disassemble the damper and put/remove o-ring inside for setting the down stop