I think that strategy is the most careful and probably gives you the best success ratio, but as the introducer, it takes a lot more time / mental cycles to keep

I think that strategy is the most careful and probably gives you the best success ratio, but as the introducer, it takes a lot more time / mental cycles to keep track of everything. That would cause me to make fewer intros. The guy can still ignore you if he doesn't to engage. And I pretty much only intro if I think there's a 60+% chance that the other party will want to engage.