Tracking Force - Where to set it?


So a few weeks back I posted regarding distortion I was getting out of my right channel (Rega p25 w/ shure v15 xyz). I got a lot of help, much appreciated. It turned out that my real problem was not with the cartridge or table, but that I had followed Shure's recommendation to set tracking at 1-1/2 grams! Turns out that the bottoming-out and distortion I was hearing was cured by turning the tracking force up to about 1.75 to 2-1/4 grams, depending on the record.

The question now is, (1) is there an optimal tracking force, and (2) will force as high as 2-2.5 grams damage the stylus or vinyl?
dogrange
Thanks for the responses. I do have a shure stylus force gauge that I use to set the actual tracking force. My actual tracking force is close to 2 grams (accounting for the brush on the V15), quite a bit higher than the 1 gram recommended by shure. I can back it off a bit, but at the recommended force it distorts at certain frequencies. I guess I'll leave it at 1.5-1/75 as long as that won't hurt my records.
Exactly which V15 are you using ? Your post does not make this clear. I ask this as some of the earlier V15's are known to produce non-linear distortions as amplitude increases. If what you are experiencing is not a volume related issue, i would think that something is not set up correctly. Any of the V15 cartridges are reasonably good "trackers" and should be able to easily stay in the groove with a "real" 1 gram of tracking pressure applied. Sean
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His first post indicated the most recent model, so that should be a V15 V xMR, I guess. So with the proper tracking force set with a guauge and with the proper compensation for the brush stabilizer, maybe the anti-skate should be varied slightly to see if that works better. BTW, what tracks better than this Shure?
If in fact it is the latest V15, you can lock that stupid brush in the up position and pretend it does'nt exist! Then go back and check your alignment, over hang, azimuth,anti scate, Etc. Finnaly re set your force. Start with a gram and if that won't track then move up slowly but I would not got above 1.5 with this thing. I think that too much force kills the life of the sound with this cart. and makes it sound closed in and dead.
Pbb, my comments were based on the earlier V15's. I do not know how well the newer series compare to the earlier ( V15 Type IV, Type III, etc... ) series. Sean
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