150 Flags PvZ Plants and Zombies iPhone Last Stand Endless

This is me playing plants vs zombies last stand endless on the iPhone. I wasn't able to get past 22 flags before trying this strategy but thanks to hedmanhedmanhedman for the blueprint as i have now gotten way past the 20 i was stuck on. This is me reaching flag 150, ill post another video when i reach 200 flags (hopefully i get there).