I made my own spark arrestor and got away with it for 3 yrs until some a-hole said they were not legal spark arrestor blah blah blah--the stick stopped a few inches in but i think he had a stick up his ass. I now have stamped spark arrestors and never have a problem. I'll be up there april 20,21--not as crowded on sundays or mondays. Hope weather is nice next weekend for you.