https://forums.stevehoffman.tv/threads/needle-sliding-across-my-records.414567/
In the relevant post, this is what the OP says about Clearaudio AS:
Thanks to all for your input to this problem. Turns out my VTF was way on the light side.
Here is how it happened. While waiting for this TT on backorder I read a lot of reviews. One reviewer noted that the tracking force seemed a bit on the heavy side once he started to serious listen after the break in period. Sure enough he was right and he made an adjustment. Musical Surroundings also suggests that VTF be checked due to shipping in a youtube video on how to set up this table.
As it turns out, my factory settings were probably absolutely accurate. Even though the reading I was getting was 3 grams instead of 2. But here is the problem and where I knew just enough to be dangerous. The tonearm has a magnetic bearing and therefore the measurement needs to be taken on the side of the platter rather than on the platter. There is not much room there and it can be tricky. You have to put a record on the platter and then build up some material on the side so that when you put the scale on the material it will be even with the record and then weigh the tracking force. Turns out 2 grams where this tonearm needs to be measured is basically a reading of 3 grams on the platter. So I was running this thing about a gram light.
Unbelievable. So right now it is tracking better, no more skating off the record when cueing a record, detail is enhanced and bass is more pronounced. I am now in a much better mood. Oh, and surface noise on older records is much less noticeable.
And here is the reason it was happening with some records and not with others, of course I am referring to the tonearm falling off the record. Lighter records is where it was occurring more. My heavier 180 gram records were much less effected.
If I go by this, then what I have measured to be 2, would actually be lesser than 1.5 or 1.5. Keeps getting crazier!!!