hey everyone, 1st post, just wanted to comment on the blocks from tsc, well long story short i spent the 7 bucks 5 years ago broke it into smaller peices, and dug 3-4 small holes and put a few in each to be covered, they didnt show much sign of usage that year but next there was one big hole about 3ft in diameter, and 3-4 inces deep the next spring and over the years they've dug up the roots to the tree's, deepening the hole couple inches a year, all this in super black dirt from a dried swamp 20-30yrs ago but anyway's i was impresses for 7 dollars and little sweat...