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
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.
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