IT WORKS!!! Now I have to tell someone, so you're the unlucky audience.
Thanks to all the input. I ended up with a 1" riser 18" tall, Teed off with a thermometer facing forward, then dropped to 3/4" through an elbow and tapered about 30 degrees down for 8" then reduced to 1/2" inside the 24" cooling jacket.
I boiled off 2 gallons of water with a pint of vinegar as a cleanser, then did another run of just plain water rinse. I ran it on the kitchen electric stove.
I have been doing home brew for several years, and a couple years ago I tried a recipe for what I call "Trash Can Brandy" because it reminded me of something a college kid would make in a trash can. It's really more like a wine, except you could taste the alcohol bite more than in wine. I experimented with different kinds of fruit that sounded good. I made many really tasty batches, but I also had many that were horrible. So I have (had) about 8 gallons of the bad stuff kicking around.
Last night I tried reducing the worst tasting batch. I had almost 3 gallons. I started everything up and it started producing after 15 minutes. I tossed the first 6 ounces then started collecting. It was coming off at 70% ABV at the start. I tried the taste test, but couldn't really taste much flavor beside alcohol. I reduced the heat to medium high and production slowed a little, but continued nicely. It was running about 192-193 degrees for quite a while. I checked the ABV and tasted it every cup generated and collected until it hit 40% ABV. That filled a 1.75ML bottle and when mixed was still 60% (120 proof). I continued to run it until I hit 20% and saved that for a future tail run when I do the rest of the bad stuff. I noticed that the flavor really started to turn bad at about 30% ABV, when the temp hit 201 degrees. I ended up with almost a full 750ml bottle of tails.
Tonight I'm going to experiment with it and see what flavor it has if I cut it with water. I don't know about running it again, we'll see.
I think I may have still run it too fast, because it only took 45 minutes. I never got a drip, it was a constant stream coming off. I'll cut the temp back more next batch.
I also started a batch of Uncle Jesse's Sour Mash on Tuesday that was percolating nicely last night, so I'll get to play with that this weekend.
The only real problem I had was keeping my cooling water cool. I filled a 40 quart canner with cold tap water. 1/2 way through the spirit run, the water was luke warm to the touch. I scooped out a couple quarts and tossed in enough ice cubes to bring the water level back up. That was all melted and the water was much warmer to the touch as the spirit run was finishing. I scooped out a couple gallons and replaced with cold tap water and had to do that again partway through the tail. Someone had posted that they were putting 2 liter bottles full of ice in their bath and it was working for them, so I've got a bunch of bottles in the freezer for my runs this weekend. Hopefully that will take care of it. But, it wasn't that much of a hassle to swap out the water.
Thanks again.