[Slackjawls]

I heard on a podcast that when you fill bottles with a Blichmann beer gun you should overcarbonate slightly in the keg before bottling to make up for small amounts of co2 released when filling.  Any opinions on this? 

[hopfenundmalz]

It is true.

To keep carbonation loss to a minimum.
1. Have the beer cold.
2. Have the beer gun cold - I put mine in the freezer while setting up to bottle.
3. Have the bottles cold.
4. Wet bottles foam less than dry. I squirt some star san in, drain, fill.

You need to minimize foaming, as the foam is lost carbonation.

[HoosierBrew]

It is true.

To keep carbonation loss to a minimum.
1. Have the beer cold.
2. Have the beer gun cold - I put mine in the freezer while setting up to bottle.
3. Have the bottles cold.
4. Wet bottles foam less than dry. I squirt some star san in, drain, fill.

You need to minimize foaming, as the foam is lost carbonation.

^^  All good advice.