Reset feels worse
That usually means the permanent gain was too small or key free boosts were skipped. Recheck code rewards and your next-run upgrade order before forcing another reset.
No clear reset timing
Use a simple rule: if the next meaningful upgrade looks far away and the reset bonus looks immediate, the reset is probably the better move.
World 5 or secret-upgrade advice conflicts
Treat that as source-watch territory. Current videos and community posts surface World 5, Marks, and secret-upgrade vocabulary, but exact late-game timing should stay unverified unless stronger evidence appears.