Certainly, that is rather impressive performance!
Glad to read in your "Caution" notice slip that the #20 is good for both Alcohol and Kerosene. I've only seen that it was intended for Kerosene, which was of course a very commonly available fuel back in its day. I do have several hundred gallons of Kerosene, not five feet from where I'm sitting (as backup heating to my wood stove), though it is on the outside of the wall and I'm inside, but I would definitely prefer using Alcohol in my Big Giant for the sake of smell alone!!!