1. Yes, amazing bait, pitch it or use it as a jig trailer
2. Yes and yes, Zoom split tail, rarely.
3. Since the super hog and beaver have come it, they have been replaced.
4. Too much info to post. Let the fish tell you what they want, if they are grabbing the trailer and not the jig, go lighter. I usually stick to a 3/8 oz jig, but will go heavier for deeper water or heavier cover. I use a heavier jig when I'm dragging it so I maintain bottom contact.