First, I can understand why you wouldn't want to mess with turning it around to convert to teaspoons. I was worried that the Bifen was a real thick liquid and may not get picked up well by the siphon from the sprayer. But as soon as I poured it into the cup, I could tell it was plenty liquid enough on it's own.
So, I put some down tonight all around my house, front yard, back and both sides. I didn't spray the pool deck and made sure to keep the spray away from the pool. Anyway, after finishing, the sun was just going down. I wanted to end my day with a dip in the pool, as I often do on week nights. Every night in recent memory I get run out of the pool by bugs driving me insane. Tonight, 30 minutes after spraying the bifen its out, I was not touched by a single bug in the pool tonight. I stayed in longer and left my body more exposed than normal just to see if there were any out there. Nothing touched me.
I didn't expect it to work so quick, but it seems to have. I guess I'll see how long it stays like that. So far, I'm very happy. I guess I'll put the Pivot 10 stuff I have down this weekend, if only because I already have it.
Thanks so much for the suggestions on the sprayer and the bifen!