It’s important to add a slope towards the rear of the hive (3º is optimal) for harvesting. This can be added to your existing base, or you can prop up the front of the hive at harvest time. You will also need to consider how your roof fits over the Flow Super to allow access to the Flow key access cover. The Flow Hive roof has a modified cutout to allow easy access, however, using a flat roof that sits above the inner cover can also work.