Need to replace the motor on my Hayward Power FLO Matrix.The old motor is a 1 horse 2 speed.Want to change to a 1.5 horse 2 speed.Would there be any difference in the propellor size? Any other issues I should be concerned about? I liked the 2 speed.But,the 1 horse on low speed pressure is a little low and would love to increase water flow a little.Would it be a noticeable difference??