I just wanted to add that the coolant temp switch doesn't necessarily trigger the same duty cycle on all cars. On my '89 cabriolet I'm pretty sure the FT switch and the coolant temp switch trigger the same pin on the computer (pin 7, I think) whereas on other cars they are different pins, and different enrichment levels. (I believe this is the case).
So if you are going to hook up a pressure switch to the coolant temp switch, it may be a good idea to measure the duty cycle that it triggers-- maybe the FT switch actually enriches more (??)
To answer the question about running with the boost sensitive CPR -- YES it runs too rich (I see low 11.x values with no FT switch -- with the FT switch it bogs) I will probably start using the FT switch triggered by a boost pressure switch and get rid of the CPR - I just have to find one of those boost pressure switches. Anyone know where to get one?