For starting stacks of T20K or larger, with 20+ players. The larger the stacks/fields, the better it works -- imo, it works best with at least a 1/2-million chips in play (20 players x T25K stacks, etc.). For smaller fields and/or smaller stacks, it doesn't work nearly as well as T500-T1000, and I don't think it works well for a T5-base set at all.
You don't need a chip larger than T500 for most T5-base sets. A 10-player set with T2000 starting stacks (200bb) will end before the T100 chips are no longer needed. Even with 20 players and T3000 stacks (300bb), you'll never need more than 14x T1000 chips (or 7x T2000), used to color-up the T100s -- and that event will typically end no later than the 1500/3000 blind level.
- Yes.
- T25-base tournaments.
- No.
- 12/12/9/7 for 20K starting stacks. T2000 chips are used to color-up T25/T100 chips and for re-buys. The 900-chip set includes 100x T2000 chips. Because the T500 is more important in a T2000 set (vs a T1000 set), you'll want at least 8 or 9 T500 chips in the starting stacks..... and they will remain in play much longer.
@Mr Tree has a large 30-player T25-base tournament set that utilizes T2000 and T10000 chips., but I dunno his specific T2000 count.
@ChaosRock also has some large T2000 tournament sets.
A little light reading on the subject, including suggestions for T2000 chip design parameters:
https://www.pokerchipforum.com/threads/help-me-find-the-perfect-t2000.46868/post-873385
https://www.pokerchipforum.com/thre...t100-t500-t2000-t10000-sets.38197/post-705396
https://www.pokerchipforum.com/threads/has-the-t2-000-chip-fallen-out-of-favor.28932/post-536211