Thanks UFC. Hope it was a good one!! I had a meth last night made with with cat nip, lemon balm, heather and lavender. All happen to have sedative properties and I slept well...
Regarding the carboy, it depends.
If you add the fruit in the primary ferment in the bucket. Then rack it into a 3 gallon carboy for bulk aging. When you rack into the carboy try to get as much liquid in there to have as little head space as possible.
If you add fruit in the secondary rack from your primary into a 5 gallon carboy, let the mead sit on the fruit for a month or so then rack into a 3 gallon with as little head space as possible.
The reason to go to glass after primary is to keep O2 out of your mead.
Go ahead and mix up the lees in the first week or so of fermentation with the drill adapter. You ca also aerate this way as well.
NOTE of caution: if you ferment in a carboy be VERY careful how you aerate/mix the lees because half of your mead will be on your ceiling due to a volcano. I have seen it, done it and have cried over it. So it is best to use the bucket as a primary vessel.