During a game I was having an NPC summon a Spirit, and they got the same amount of hits as the summoned creature... now does that make them show up but not be willing to serve? Or do they not come at all? Also if so can you redo a summoning test to retry to give you services?
I know with Binding you need hits + 1 = the spirits hits in order to bind it, and you'll have no services. Didn't know if this was the same with summoning, I'm afraid I couldn't find an exact text of what happens when you Tie the spirit in summoning.