Trade against the desk.

One plain v4 pool. The fee you pay is the pool's stored fee, set by the desk between swaps and read by every router, so the quote holds at execution. It widens with volatility. Every fee ends up burning CDL.

Bbuy CDLfee ·
ETH
You receive (est.)·
Desk fee·
Min. received·
RouteETH → CDL · Universal Router

the fee is the pool's stored fee, so what you see quoted is what the router charges. it widens when the tape gets volatile.

Ssell CDLfee ·
CDL
You receive (est.)·
Desk fee·
Min. received·
Your balance0 CDL

Selling routes through permit2, so it needs two one-time approvals.

both sides pay the same stored fee. it widens when the tape gets volatile and settles back as things calm down.