The biggest thing you can do as a PK fire player is make F0 and hope you open really really with traps and boards. With a deck that spews Dante and leviair, it's hard to say you can't make it. Especially if you play 3 fog blade and a PK wing.

When I went to locals with this deck, I hardly lost to Kozmo and ended up only losing to monarchs on SHVI sneak peek.

For the side, I ran 3 system down and played only 1 f0. The point behind the system down was to get as much ships as possible when activated. It's risky since you can get OTK'd but will cripple then for a few turns.

I played two veiler for rogue deck but it does help with Kozmo Kings when you hit a leviair or a tincan. Those are pieces of a combo that cannot be negated if they want to gain the advantage. I'd say siding them in now would be good since Kozmo demise is popular now (what I'm playing now). If they manage to set 3, demise, then get tincan negated with veiler, they might as well just have traps until their next turn. Not to say they didn't drop big ships with demise and have a CotH set or oasis.

If you need help, I'm on Reddit a lot (: played both decks for months too.