I just did 2 Ultegra 11spd chains with super secret dip.
One chain was brand new and one was a couple months old with lots of standard grease/road crud on it.
I did the standard mineral spirits/denatured alcohol to clean both chains. Note for anyone doing this I would also suggest cleaning your cassettes the same way. Then I dipped them for about 30 minutes or so shaking them a few times (I don’t think you need to dip them long, I was doing other things at the time so let them sit a bit). Also, I used a plastic tie on one end of the chain to make it easy to get out of the jar.
I used my fingers to squeegee the excess back into the jar and then hung them to dry over night over some paper towels.
I did a 3 hour outside ride today with the new chain. The drive chain was so quiet and even shifting (mechanical Ultegra) was so much smoother. I checked the chain/cassettes after the ride and they were still like new. The older chain will go on my trainer bike.
So, if you don’t want to deal with crock pots and hot wax I would go the dip route. The whole process was really hassle free and I didn’t need to buy any extra equipment. I am not going back to oil base lubes and I see no reason to mess with hot wax either.