Steady improvement is a rather obvious sign of progress and for Andre Pronovost the records show he's moving up the hockey ladder. Two years ago the speedy winger rapped in 10 goals in his first taste of NHL play and upped that mark to 16 in 1957-58. Toe Blake is convinced he'll be a 20 goal scorer this year, because he has looked more mature, more confident and more experienced through the training camp of 1958. Last year with Phil Goyette and Claude Provost as his linemates Andre helped give Canadiens even greater balance than in the years before.)