Have neve used one and planning on taking the john boat out on creek soon. Anyone else use them.

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Yes, I just ordered some weighted bobbers by THK fishing, they are soft neoprene.. 2.5 inch and 1 inch sizes..
unless you use braided or heavy line stay away from the spring type bobbers).. they tend to cut the line, at the worst possible time, like when you have a fish on.. I took all of the springs off of my bobbers that had them, then drilled a tiny hole in the stems, so I can use them as slip corks.. losing one fish, is one too many...
the weighted bobbers have thier use, like if you want to cast farther, but keep your jig light.,. also a weighted bobber doesnt get moved across the water as fast in the wind, allowing more time in the strike zone.. in spring I will switch to a tiny neoprene unweighted fly float in bright red for a super stealthy presentation , just large enough to support a 1/64th oz jighead, on which I put a small plastic frog..
I would recommend get a good variety of styles and sizes..

Use them a lot!

Yep. It's always fun. This time of year, if the fish happen to be pulled tight to a piece of hangy cover and aren't willing to expend much energy, vertical jigging can be the better option though

Fun, almost as fun as the feel of the thump.

I prefer a peg bobber. If I have to get my bait any deeper than a few feet under a bobber I’d rather fish horizontally.

Slip cork in 30' for the bigger fish.

Yep

+1

Me, I like slip bobbers, they have a purpose.

I have slip bobbers in all different sizes. I try and use as small as a bobber I can get away with. If I need a small weighted slip bobber I take a 1/32 bullet weight and insert it into the bottom hole of slip bobber. 1/32 bullet weights are hard to find but well worth the effort if you use small slip bobbers.