From the other side pre-prod code review just delays software getting into production. Delays here tend to lead to bigger, riskier changesets. That makes no se

From the other side pre-prod code review just delays software getting into production. Delays here tend to lead to bigger, riskier changesets. That makes no sense. If delays introduced by pre-prod code review result in "bigger changesets", you're clearly doing it wrong. In fact, if you batch up commits to deliver to prod on some semi-regular basis, the exact opposite should happen. Individual changesets would be exactly the same. Velocity may slow down (that is, it may take longer for any given changeset to make it to production), but you're producing higher quality code in exchange.