Help understanding seat pedestals

[shimmy]

Hey, so i am really really late to the knowledge of seat pedestals on a boat. Have always stood up or sat in a chair. When i went fishing with a guide on Sturgeon Bay, he had this awesome pedestal seat that could tighten the chair in a locked position so hook sets wouldn't spin the butt seat around. It could also raise and lower. Been looking at seats for a while. Couple questions, on a seat like this from bass pro.

http://www.basspro.com/Bass-Pro-Shops-Power-Pedestal/product/1212071537/

1. Does a seat like this tighten the seat in place to prevent it from turning? I know the hydraulics will go up and down, but can the seat be tightened down? 

2. I have seen some seats that have a lever on the post and then something to tighten at the top. Are these the only ones that can tighten the seat in place so it doesn't spin freely?

 

Thanks all

[Puggz]

Check out springfield marine and check out the Power-Rise Air Ride Pedestals. I have the 22" version and yes it comes with a clamp to help it resist turning.