Had Plotts for years and still love hunting with them. Most of the guys I hunt with from TN have Plotts,....they're all open on track but we kill a lot of hogs with them and the few cur dogs that a couple of the guys and I have. I truly believe that a Plott/cur cross will consistently make a super hog dog more so than any other.
I agree with both TNHILLBILLY and Firemedic that they all have some openess to them. They all have great personalities and are wanting to please thier owners. Research the lines of the plotts though as some have different tendencies.