Light leaks are in, right? To be honest, I secretly enjoy them too, especially when they're unexpected and somewhat artsy. However, my BX20 was leaking EVERY shot in the same place - that becomes monotonous and annoying very quickly.
I'm spoilt for choice, as a camera collector. I also have the BCA which is really similar to the BX20 but with limited manual function. Without a battery you can only use it at shutter speed 1/60. Apart from that, they are the same camera to me.
Really missing the full manual function of the BX20, I decided to stop being lazy and fix the light seals with self adhesive felt. Really easy to do surprisingly. I had to remove the existing seal[which didn't look that bad] with a tweezer, cut strips from the sheet of felt, and stick along the same lines I removed the old one from. Done.
BX20 is now back in action. Coffee anyone?