are these arrows a god match?

[RadSav]

400's would be a little lite.  I would go with the 340's if you want the Gamegetters.

400's would be more than a little lite in spine.  Even the 2216 at .375 spine is going to be a little lite.  360 to 340 spine should be your target with the 125 grain point.  31 3/8"...you must be built like a gorilla