john, i drilled holes in the verticle poles as well, all thirty of them. it sank really easy, just dissapeared, lol. i'm gonna do the blind man trick today, with a 30' pole and tap, tap, tap. I'm putting some suspended condos on top of these that are 10' tall also, thats why its important for me to exactly locate the bottom condo. i'll then have structure from 10' down to the 30' bottom.Originally Posted by john h