Brilliant, thanks for sharing your experience. Then I shall infuse my upcoming 1099 slurry with some glycerine and freeze it for future mixes with s04.They taste very different. Especially if you use S-04 in dry form, in which it is quite neutral. I used 1099 in a Doom Bar clone recently (they reportedly ferment at 25°C, so perfekt for a summer brew) and it gives a full fruity flavour with complex notes. S-04, if used in liquid form as yeast slurry, is more on the orange side like Fuller's.
No fusels at 25c?!
002 would give you the hangover of death (talking from personal experience...).