GHD,
There are some good upgrades in the P3 Engines also, the built in BCR is one of them, I have to admit I own no P3 engines right now, my P2's run perfectly and I was unwilling to purchase the P3 because of some of the problems, I am reading about. However knowing MTH they will be worked out with some kind of up grade, in the near future. Waiting to see what the P4 will be like.
PCRR/Dave