My highest level calvary payout was at around 21-25. but it is close to occulet so most of the time will be occult sadly haha. i haven't necessarily tried to go for those other than when i first started my castle and starting new servers. but from my experience i would fill my BG bank and then hit a level under 20 just to check if my bank was full, if it was i would get a payout on level under 20 then add a bit more bank to get my full payout. never tried taking multiple calv/infantry payouts continuously tho haha xD interesting idea!