Thuchan, I completely agree with you that Timeline is the most accurate device. I added SDS to my VPI table soon after Timeline became available. Seeing how it was such a nifty toy, I bought one before I even own any strobe. I was surprised when my local dealer came over to set up my VPI using Kab strobe and when I put on Timeline, I could see how far off Kab strobe was in comparison to Timeline.
Initially I was glad I bought Timeline and even told my local dealer that they need to get one immediately because otherwise they cannot set up turntable properly.
Now a few years later, having gone through 2 Micro Seiki Turntable, 2 VPI tables and TW (keeping 3), I became a bit disillusion about Timeline. First, yes, I can dial in SDS and Micro Seiki and get steady line with Timeline. TW is always either a bit faster or slowly as the interval on speed controller is larger than SDS (I am using BN battery powered controller, no I don't know if my hold 20 hours charge but on my day off, I can use my TW for several hours with no need to recharge). I always measure with arm down on the table. The whole usual routine and tried to be as accurate as possible. One thing I could never compensated for though is the actual mass of Timeline itself. On TW, I prefer using no center weight. VPI HRX center weight is 6-700g if I remember correctly. I use Orsonic clamp with Micro Seiki. I have a few center weights lying around and tried many more up to 1 kg but this is currently what I have. Timeline itself unfortunately does not work so well for me as center weight otherwise it would solve the biggest problem for me. If I remember correctly, Timeline is about 200 odd grams. Using Timeline instead of my usual center weight, I will get one speed but as soon as I take off Timeline and put on my usual center weight, the speed will be changed.
Timeline is so sensitive that even a 200g weight change on a heavy Microseiki or TW platter, you can detect speed difference. Try calibrating speed with Timeline using 120g LP and 200g LP, you will notice a change in speed as well.
Does every Timeline user recalibrate or make a note to adjust speed controller every time they change LP?
How do you compensate for differences in mass of center weight use or if you don't use center weight.
This drives me nut for a while until I finally realize that it is not simple to acheive 100% accurate speed per Timeline reading in practice. Looks nice on paper, sounds great in theory but at the end of the day, I just settled for getting close enough to Timeline is just a-okay.
After I stop obsessing with fidgetting with Timeline, it was a lot easier to enjoy the music.
I still use Timeline as I did not bother to buy a strobe. On TW, I just pick the speed that is just a tad slower than Timeline's speed figuring that without Timeline, it will speed up a tad. On VPI SDS/Micro Seiki, I could dial in perfectly but I know that as soon as I put on my usual center weight, speed will be a bit off and I settled for that. I usually use 180g Lp to calibrate, when I listen to 120g, 100g, 200g LP, I know that speed will be a bit off as well and I settled for that as well.
Absolute speed accuracy is nice but the only acceptable speed, I don't think so.
Raul, Lewn, I also totally agree with you completely.