Needle: preferably the Laurier IBP, usually size 5 or 6, sometimes 4. Modality: some kind of flash thermolysis (that’s what the IBP is optimized for), if available synchro. Timing 0.2 secs or slightly shorter (0.16-1.17 secs) reduces pain a bit. 2nd choice of probe: Laurier tapered, same modalities with a tendency toward slightly shorter timing (and stronger pulses) than with the IBP. Third choice (for me) Ballet Gold, same sizes. I find the elasticity of the 2 piece probes really helpful
Numbing is possible, but usually only partial numbing can be achieved.
Position: some sort of “embryonal position”, sometimes better with the lower leg stretched a bit, sometimes not. Working from the back, of course.
Stretching the skin is crucial and well done often allows to reduce the setting al lot. If done perfectly in the areas where the skin is really thin, You can even see the insertion and the ongoing coagulation process (if magnification permits).