Well, I can be a bit flexible, like sell 0.15 BTC, but not too much as I don't want to get rid of too many valuable Bitcoins for cheap. Of course if someone offers proper price, I can sell more. Or is offering an out-of-EU SWIFT wire transfer with OUR fee option. Or anything like that interesting, like any wire on another currency then EUR, then I can pay more, as I didn't get any of those yet. I also pay more for transfers from HSBC, as I am especially interested in testing those.
Several, OK, but if they are at least an hour apart, and during hours 09:00 - 15:00 - to test cut-off times, which seem to vary between 10:30 and 15:00 between different banks.
Any SEPA after 15:00 will leave the bank next day anyway, and the earliest cut-off time for SEPA I've seen so far is 10:30.
German local bank transfers are also interesting. Between my accounts, if ordered before 19:50, they arrive in the other bank next day before 09:10, contrary to what other people say that they take 3 days. So I am interested in figuring out where those mysterious transfers which hide in a black hole for 3 days come from, because I haven't witnessed one so far. Of course if someone orders a transfer on Monday at 21:00 and checks the other bank on Wednesday at 06:30, the transfer won't be there, and he might say "oh look, it takes three days - Monday, Tuesday, Wednesday", but sorry, that's just not counting the days properly, and not knowing that for the bank, after cut-off time is like already next day, so that doesn't count.