No flips for you!
More work for the GM.Am I asking for trouble if I do this with 5 players? Long story short was I made my initial pitches one potential player was unavailable so I gave his seat to someone else. He is now available again and wants to play, but that would take the PCs from 4 to 5. He's a good player, and game for anything so he is valuable to have at the table. What are the consequences of too many PCs in Scum and Villainy or FitD in general?
The best way I've heard games like Blades/S&V described is as a game of spinning plates (from the PC side). The trick is to keep the plates spinning and not let them fall and to try to put them all down safely. The GM is adding plates (especially when you've managed to put one down), and bumping you, and yelling suddenly, all to make keeping the plates up a challenge.
When you add more players, the GM's job gets more spread out and they have to work just that little bit harder to keep the pressure up. This is why I said upthread that the stress isn't on the system but on the human parts of the game. It's a personal tolerance point, though. I'd not want to run for more the 4. But that's me.