I have used my alt, an attack build test this. It definetly lowers your end payout. I did this: 1 attack only at full troops on a haunting. Then, 1 attack only at full troops, plus 1 assassination at full spies. My end payout was literally 25%-30% lower. Case Closed.
I have tested a couple times now myself and while it sometimes appears to lower payout to use your spies as an attack heavy build I will retract my previous post defending the find. There have been many times I've seen a lower bonus from spy use as opposed to troops only, but it is in fact a mirage because of the reasons stated in previous post including this page. The approach to the EB from many things including members hitting, xstal use, completion time ect.. Have a direct effect on overall bonus. Therefore sometimes it creates am illusion of lower payout. If you just do the test with a single bar attacks, and then single bar atk
Yeah Andy, I imagine bonus is well better for spy builds. Especially true hansels with 1 little Atk building lol