The cheapest and best way I've found is : either borrow or buy a
> sawsall with a course blade. Cut in the middle of the riser and angle
borrowing usually leads to abuse of the tool and possibly any relationship between the lender and the lendee will become strained
fwiw sawzalls are usually reserved for doing demolition type work but they do sometimes work in a pinch
when that tip hits something it should be something you do not care about
but i do like the tool and it works great for demoing wood frame construction