Re: Calling all mental giants for math question
Whether you go with 25:1 or 30:1 or whatever, truth be told, this is a useless mathmatical exercise (though it's fun to do simple algebra). Just use up what's left in the can and start with you new mix with the next can you mix up. There's really not an advantage that I can see to going through the hassle of changing the mix of what's in the can. If you expect some sort of noticeable speed increase- you will be diappointed.