The wheelbase is too short - I can't drop the blade far enough when I'm climbing the pile.
I use an old bed frame with cement blocks on it for a drag harrow.
Don't have a picture of the bed frame sled.
I used lye - stove cleaner - this time (don't ask) it did not work as well as muriatic acid.
I have applied acid with a Q tip and the aluminum will turn black. Either way it needs to be finished with emery cloth.