I think where some of the confusion comes is from the following 2 RSA's:
http://www.gencourt.state.nh.us/rsa/...270/270-42.htm
This defines a raft as 2 boats.
http://www.gencourt.state.nh.us/rsa/...270/270-44.htm
This references 3 boats in a raft.
Looking at SAF-C 407.03, which defines the no rafting areas on Winni, it references the definition in 270-42.