I'm running into something weird in CVCX with regards to playing multiple hands. I've run a number of simulations over the couple years I've had the software. All simulations let me select whether to play 2 hands. If you check that box, in some cases it applies that setting to all TCs without exception. In other cases, a number picker appears and lets me select a TC level at which to start playing two hands, however, that number can't be set to less than 0.

Several questions about this:
1) Why is this setting different for different sims? I can't think of anything I might've selected that would've made a difference there.
2) Is there a way to set the TC level to a negative number? I'm interested in playing around with that variable to see the effect it has.

Thanks for your help!