mijostyn
If you don't know how disc jockey's cued records, they held the platter still with their left hand, placed the tonearm on the record at the beginning of the cut they wanted to play then "jockeyed" the platter back and forth to the very beginning of the cut and right on time they let the platter go. Finally the idler wheel tables were replaced by direct drive units which were even better at this.Actually, the pickup speed of a good idler like the old QRK broadcast tables is faster than a DD, and why idlers persisted in broadcast well into the DD era.
You can not use belt drive tables this way.Sure you can. You "slip-cue" by using a slip mat, which lets the platter spin while you hold the disc steady, and then release the disc when needed. Many radio DDs had slip mats on them for just that reason.