I am running 12 flow on my quadjet wand right now and am looking to buy a 14 inch greenhorn wand. I love the high flow cleaning but i'm not sure if I should go down to 10 flow? Going up to 15 flow would be way too much or would it be the same as my quad jet due to the larger cleaning path? I'm using a 405 with the first 50 ft. 2.5 inch vac hose. My other option would be getting a 12 inch greenhorn with the 12 flow but I wanted a wand with a bigger cleaning path. Any suggestions would be great.