When you feel the algae and other gunk get on your jig (and do it in the middle of your retrieve even if you do not feel any gunk because chances are there is something on it) quickly pop the rod tip up hard a few times, trying to shake or pop the junk of your bait, cleaning it. You can do this so the jig moves only a few feet, staying in the water and in the strike zone, braid works the best for this technique. Also you can use a lighter jig, a swimming retrieve, and using a bigger trailer like a double wide beaver and full sized brushhog, to reduce the rate fall, doubling up on jig skirts also accomplishes this.