If the record is severely warped and is having trouble tracking accurately, try the coin trick that your grandparents used. Neutralizing the counterweight of the tone-arm, and applying some mass in the form of coins on the tone arm shell works wonders for warped, skipping discs. Placing coins on the cartridge shell also allows the tone-arm system to better track warped records without launching the tone arm into deep space. Do not worry too much if, when you increase the weight to deal with a very damaged record, you cause the pickup cartridge to "bottom out" on the record. Even though this produces severe thumps in your recording, most of these things can be removed with the DC SIX or Millennium software.