One quick follow-up. I have noted seasonal adjustment issues with SME , Rega , All "S" arms & Grace. In my view all tonearms are subject to adjustment issues that affect tonality, midrange-smearing and mis-tracking.
The analogy would be air pressure to car tires. All car tires require perodic checks to determine correct air pressure. Subtal changes can not be seen with the eye. A air gauge is used to balance out the air reading for each tire. Wally Kits and other set-up adjustment tools are required to assure the tonearm is operating at the manufactures recommendations. The changes can range all over the spectrum , re-adjustment is required to return the tonearm to optimal operating conditions. Without such adjustments you are flying by the "seat-of-your pants" in analog.
When one steams a record , the recording silghtly swells someting measurable in a Lab setting. It is for that reason I always recommend a "rest" period prior to playback for the LP to re-sizes itself. The same is true when one plays a LP. The phono stylas heats the vinyl for a thousandths of a second ever-so-slightly distorting the grove that needs to re-size itself in about 1/2hr. It is for that reason a quick replay of a LP side may sound "smoother" when actually its slightly smearing/blurring delicate details the second time around. The variables in playback are such that even record cleaning using a RCM w/ cleaning fluids may sound "smooth" on a newly cleaned LP when what one is actually hearing is residue of the fluid deep in the grove acting as a filter to the needle as it glides over the grove.
It is for that reason some analog'ers perfer "wet playback" that smoothes the sound at the cost of detail.
When one over-lays all of these observations its not difficult to recognize why in analog playback is so challenging ... To view the "Turrents of OZ" not just the bricks on the road... Bats 'an all.
The analogy would be air pressure to car tires. All car tires require perodic checks to determine correct air pressure. Subtal changes can not be seen with the eye. A air gauge is used to balance out the air reading for each tire. Wally Kits and other set-up adjustment tools are required to assure the tonearm is operating at the manufactures recommendations. The changes can range all over the spectrum , re-adjustment is required to return the tonearm to optimal operating conditions. Without such adjustments you are flying by the "seat-of-your pants" in analog.
When one steams a record , the recording silghtly swells someting measurable in a Lab setting. It is for that reason I always recommend a "rest" period prior to playback for the LP to re-sizes itself. The same is true when one plays a LP. The phono stylas heats the vinyl for a thousandths of a second ever-so-slightly distorting the grove that needs to re-size itself in about 1/2hr. It is for that reason a quick replay of a LP side may sound "smoother" when actually its slightly smearing/blurring delicate details the second time around. The variables in playback are such that even record cleaning using a RCM w/ cleaning fluids may sound "smooth" on a newly cleaned LP when what one is actually hearing is residue of the fluid deep in the grove acting as a filter to the needle as it glides over the grove.
It is for that reason some analog'ers perfer "wet playback" that smoothes the sound at the cost of detail.
When one over-lays all of these observations its not difficult to recognize why in analog playback is so challenging ... To view the "Turrents of OZ" not just the bricks on the road... Bats 'an all.