This is something I thought of while reading through the playtest document. The swashbuckler can use acrobatics and one other skill to gain panache, with the second skill based on their swashbuckler's style. This feels quite limiting, since you can easily imagine a character that's good at both athletics and intimidation, and who uses both skills with flair and aplomb. But if you build that character, you'll only ever use of those skills in combat, since the other won't give you panache. I think it makes sense to scrap the three styles and let the swashbuckler use any of the listed skills be default.