Dear Davey,
Your comment about rising temperatures could be significant.
Each 5 degree C temperature change could be equivalent to 1mm of VTA. This is how much you should be looking to compensate for once it swings away from the ideal 21-22C.
If I'm not in error, each 4mm of VTA is equivalent to a 1 degree change of angle(9" arm).
4mm VTA change needs approx 0.25g VTF compensation.
If the cart is indeed "bottoming", it doesn't surprise me that it normalises halfway through the first track. If you were having serious suspension problems I'd expect you to get less specific instances of record contact.
Hope this helps.
Kind regards....
Your comment about rising temperatures could be significant.
Each 5 degree C temperature change could be equivalent to 1mm of VTA. This is how much you should be looking to compensate for once it swings away from the ideal 21-22C.
If I'm not in error, each 4mm of VTA is equivalent to a 1 degree change of angle(9" arm).
4mm VTA change needs approx 0.25g VTF compensation.
If the cart is indeed "bottoming", it doesn't surprise me that it normalises halfway through the first track. If you were having serious suspension problems I'd expect you to get less specific instances of record contact.
Hope this helps.
Kind regards....