Use 100 USDC collateral to open ETH long with 5x leverage; fee is 0.50 USDC. Close the position after 35 minutes (assume PnL = 0); fee is 0.50 USDC. Total fees paid are 1.00 USDC. At the end of the week, you can claim PERP worth 1.10 USDC (half unlocked now, half unlocked after 6 months).