Anchor probe arm

Hello, I have a question about the design of probe arm thermal anchor in my TTP6 system (from Desert Cryotronics). It's an old system but it seems the newer Lakeshore system is using the same design. The probe arm is a copper beam anchored to both radiation shield and the sample stage. However, this method seems to increase the heat load because it needs to cool the whole probe arm. It also increase the settling time for each temperature because the measurement won't be high quality if the probe arm is still expanding/contracting. An alternative way is to cool down only the probe, not the probe arm. In other words, I can take off the anchors to radiation shield, add a thermal insulator under the probe, and anchor the copper braids directly on the probe (where the screws sit). There may be some modifications needed, but I'm curious if the concept is correct. Essentially, if we don't cool the probe arm at all, but only cool the probe itself, which is isolated from the probe arm because it sits on a thermal insulator, does this reduce the heat load and get a better probe tip temperature?