The driver's side rain guard on my truck came with a big chunk cracked out of it, so last night I used a heat gun and removed the rest. I didn't particularly enjoy having it on there, because I kept thinking a window was rolled down when it was just the edge of the rain guard showing through the window. But it does look like it did a good job keeping water away from the window seal at the top, which is pretty loose. I'm not planning on doing a lot of driving in the rain, but still, I don't want to have introduced a big leak point. Should I replace the rain guard for $40 - $80, or remove the other one for $0?