I could very easily pour off the bacon grease from the parchment paper, but I accumulate enough throughout the week that I don't usually save it when I make the BLTs. What I like about the parchment paper is there is no cleanup. Paper and grease into the trash and the pan is still clean.OK, so you're not trying to hoard bacon grease for the next gravy event like I am.
I used a sided cookie sheet, but I put a cookie cooler grid on the bottom, then the bacon on the grid so any grease drips through.
I also used a lower temp, but you've gotten me to think again.
I know the oven instead of skillet is very popular, almost a Stairway To Bacon Heaven for many.