the viability of setting up the CASR's into a logic tree would depend on the the CASR's being consistently logical.
1. You must demonstrate how to enter and recover from an incipient spin as a unit of competency to attain a SEA type rating (eg a PPL)
(and incipient spins are spins that haven't stabilised - many aircraft will require multiple turns to move from incipient spin to stable spin)
2. You must not deliberately spin an aircraft that is not certified for spinning (most ab initio GA training aircraft)
3. Therefore you cannot teach students to PPL standard solely in aircraft that cannot be spun (eg warrior, 152/172, DA40, etc)
OR
1. Grade 3 instructors cannot conduct a flight review
2. Grade 3 instructors with a DFE can issue a DF Endorsement
3. A DFE counts as a flight review
4. Therefore a Grade 3 instructor can issue a flight review. But not conduct one.
OR
1. a PPL can hold a DFE instructor rating and conduct DFE training.
2. DFE training can be done outside of part 141, 142
3. non 141,142 instructing is classified as a private operation
4. Therefore a PPL can receive payment for instructing (if it is towards a DFE).
5. Also a DFE counts as a Flight Review
6. Therefore a PPL can issue a flight review. But not conduct one.