Pathfinder Unchained Wound Thresholds

[darthgator]

My group has been using the 'Wound Threshold' variant from Unchained for a while now. Today I was re-reading some info from the book, and I'm not sure HL is calculating everything properly.

1. Wound threshold penalties are supposed to apply to caster level, meaning a caster will lose access to certain spells if their CL drops low enough. This doesn't seem to happen within the software.

2. Within the software, the penalties appear to apply to CMD and not CMB. However, nowhere in the actual rules are CMB or CMD listed as affected by the wound threshold penalties.

3. The penalties are not being applied to spell attack rolls (under the 'Active Spellcasting' option from Unchained).

Any ideas why this might be the case?