Cheers cas, actually we measured it and it was just over 7 and a half foot to grass aswell, but on the other side it's a deffo 8 foot to concrete, me and my m8's went back yesterday to do the drop but it absolutely lashed it down with rain all day lol, so we did no riding at all and we just got wet for nothing. i'm hoping to do a 9 foot drop off by the end of the month. cheers mark.