Taking into account the gravity on the moon, you should have no problem hitting four feet!
THIS IS WHAT THEY LOOK LIKE SO FAR..1-19-11
HOPE YOU LIKE THEMView attachment 1391787View attachment 1391788View attachment 1391790View attachment 1391792View attachment 1391795
Looking real good, I think with a fan and maybe a stake you could have no problem getting them back up and down again within a few days depending on witch direction you go, just my opinion! I'll be starting my training for the first time in a couple of days maybe, it still scares me to crank my babies around but from what I have seen it's well worth it.