I have the disc, and assumed that "Never Say Naw" is indeed a version of "Baby Please (Lost Love)." What in the liner notes led you to believe otherwise?
On "Baby Please," Mayfield sticks with "Baby Please, Please Come Back to Me" all the way through. On "Never Say Naw," he shifts toward the end to "Baby Please, Don't Say Naw to Me."
The two takes on "Baby, Please" are quite different. I wouldn't want to give one up, especially "Never Say Nah."