Ok, have been out and bought 6 blocks and a 1/4 sheet of 9mm, 5 ply, ah, ply.
Blocks are unfortunately wet, and are currently drying in the carport. I will stick some MDF under each tower to help spread the weight.
Have also sandpapered down the ply, so just gota wait for the blocks to dry out and the final O.K. from The Allpowerful, Allknowing Mother ( :roll: )
Can't decide if I want to upgrade the Angels or not.
Will go for a look at silica sand soon. Sounds expensive :roll: