Here is what I came up with. I would say it was better than paying a couple dollars each but I broke my bandsaw blade in the process. A bit of scrounging and 4 extension cords later I headed out to the treeline and installed it in a boxelder tree growing out back.
After installing it I promptly forgot about it until Sunday morning. I headed out to check the pail. It had collected a quart of sap, not much but enough to see if there was a decent sugar content. I boiled it down on the stove until it was very thick and then stuck it in a 250° oven to drive the rest of the water off.
There was my yield out of that first quart, 3/8oz. This would work out to 1.5oz/gallon of sap. The Lohman's maples yielded 2oz/gal in previous averages, and the previous time I sugared this particular tree I got an amazing 4oz/gal, though reading through previous posts I only yielded 2 gallons of sap (and I can't remember if I got more after that post.) I suspect the yield was low because it is so early in the season. In the 2 intervening days I found about a quart each day, and that little jar is now full to the top of sugar. I have yet to weigh that but I will give weekly totals as this season goes on.
I personally prefer to take the sap all the way to sugar because the first time I sugared maples some of my syrup got moldy. In a sugar state it is a lot more shelf stable, and I could always rehydrate it into syrup if I wanted.
Oh, and for Sharon who asked about bird poop getting in the bucket, it seems ants are a bigger problem. Filtration is still the solution.