Bonsoir just saw this interesting thread.
Have acquired, used and tested current probes since 1970s, as SMPS, electronic ballast and consulting.
Used them a lot in debugging,'uch more information than just voltage probes.
Our collection is Tektronix, Yokogawa, and Pearson (passive CT)
ranges up to 100A DC and 1000A AC, with Tektronix matching amplifiers.
Usual test with Tektronix PG506 or PG508 into 50 Ohms term to make 1x or 10x loop.
Issues to check
3 db BW, (not 6 db!) rise time,pulse abberation ( overshoot)
DC offset adjustment,degauss effectiveness, DC drift with warmup and temperature
CMRR eg with 500V H bridge wire the fast rise on the probed wire will couple into the currency probe
Easy test probe wire with 0 current, drive wire from HV pulse gen or H bridge,find CMRR of probe.
Cables are reasonable thickness and flexibility on Tek except old P6042.
Any probe requiring power may be specific to an input scheme that's propriétaire.
Scope probe external power sockets are not standardized, eg identical Lemo 4 pin on Tektronix and Yokogawa but 12vs 15 V and different pinout
So, beware the fragile cores, dropping the probe even 100mm on hard surface can cause hairline cracks.
Would reccomend the vendor send Dave a sample for test and eval BEFORE any qty order.
If one is willing, ship a probe to me ( have USA drop) and I can test and write an evaluation.
Just the ramblings of an old retired EE
Jon