If I get fenders again this winter, I'll take some video.

I'm just trying to present both sides. I've found locking bike to parking meters/racks a few times a day and then tossing bike in the trunk totally destroys fenders, making them less cost effective than backscratchers. Backscratchers are WAY easier to swap between bike than full fenders too.

On the negative, I have to repack my BB a lot riding without a full front fender. My pedals seem to be doing fine. I can get decent pedals for $20, so I don't mind if I have to replace them every 15 years or so.

My whole rear wheel area seems to get nastier with a rear fender. All that crap on the braking surface, black brake dust slurry combining with road grime just makes a mess of cogs and, let's just say almost everything rear-triangle related except the rear brake caliper.

If I didn't mention it, I have a short commute, 3.8 miles each way, similar mileage to the OP's. If I was still doing my 15 mile commute I did back in the day, I'd have to have full fenders.