yakster wrote:Ray,
I have that problem (unequal split favoring one side) on my spouted La Peppina portafilter and have been unable to resolve it. I usually run both spouts into a single cup so it's not much of an issue, but when I do want to split a double into two singles someone is getting the shorter end of the stick. It doesn't appear to be an issue with leveling or dosing. If you slow things down too much, you'll probably spill out of the top of the hanging spouts.
Yeah, I'm going to maybe do some testing in a while here. I think the issue is that the stream has plenty of room to sort of snake down one side or the other, which influences the side of the spout that it ends up going out. Either that or once it starts to flow in one direction, the natural affinity for the rest of the espresso to continue the same direction comes into play.
You are correct about the risk of the top overflowing, but I think part of the solution also will involve slowing things down a bit also.
Ray