I could be wrong plenty of other people are saying so in the urgent help thread, I seem to be the only one having an issue with temp drops directly after yeast pitching - all I can say is that there will be no thermal shocking if the yeast is pitched from a starter at the same temp, having always pitched high and nearly always getting that bubblegummy sort of flavour, when i never aerated the wort and I pitched yeast too warm
I put mine in the fridge (temp controlled) let it get down to the temp overnight with the lid and airlock on, I get up in the morning and aerate the wort pouring into a big pot and back into the fermenter a few times then add the yeast, no problems but this is what cubing is good for too, because there is less headspace, however I cool my beer from the stove down to 30 or so in a short time
lol when you work that out let me know, I think this is a really interesting area and I have not seen much speak about it. maybe people don't want to admit to screwing up - that's a no brainer really isn't it? maybe people give up
it may be even worth doing some small batches, I can do 5ltrs, try a few different ways to save it, on the urgent thread my thought would have been to cold crash, rack out of fermenter off the yeast layer, bring back up to ferment temp, aerate then re-pitch
we might be able to take beer to bubblegum and back again! lol