Yes on the burn marks, they must go away well enough to be hidden by grass. If you look at the last picture of my pickup on the horizon you will see just to the left and downhill from the pickup a blacker area. That was a monster slash pile that the logger burnt when he cut the hilltop. I actually got that burn permit and it allowed a 50' pile measured in any direction. The 300 class excavator could only load so much before he was too hot to put anymore on.
I use the boxblade to spread out the ashes and spent coals and then I set the rippers down to plow the ashes into the surface enough that grass can grow through it.
Turns out that rye grass and red clover are NOT wetland plants while fescue, white clover, and orchard grass are wetland plants. So I buy big bags of straight perennial ryegrass seed from walmart. To be clear, this area is not what most people consider a wetland. There is never standing water and there are no lillypads or cattails. What there is is clay soils and a valley to collect runoff. If the runoff doesn't get the heck out of there then it saturates the clay and I'll get vegetation that likes to be wet every once in awhile like buttercups. It is not groundwater and the entire area has a 6% grade. A marginal wetland of minimal value at best and would make a great garden for pumpkins, blueberries, or pasture. I'm not out there draining a lake, swamp, or bog.
The adult beverage is usually surrounded by a blue insulated cozy but I seem to have lost it. I do limit my consumption when working, it just slows me down if I have too much barley pop, I have found that the plastic ice tea drinks from lipton or nestea are excellent thirst quenchers when ice cold.
The leaf blower is great. It burns just a bit of premix and I have to be careful that it stays aimed properly since the vibration and thrust make it wander. The fire can get hot enough to melt the blower. One time I had a bit of molten plastic from the handle stick to my finger. Dang that's hot!
I have a few piles that have been setting long enough to have grass grown around them. I mow the grass but I am afraid to burn the slash for fear of the grass starting on fire and getting out of control. Do you all plow the area under or just cut the grass short before burning out in a field.