You want to target the CG to be approximately 1" behind the sponson end. If you can do that either way consider the driveline angle and cowl fitment with the motor/ESC/battery in the hull. I tend to prefer keep the motor forward and mount a pair of batteries either side of the motor and ESC directly in front of the motor. Also consider how you will mount the batteries. If running a single battery it's likely best to keep the battery in front, then the motor directly behind it. You can offset he ESC to either side. If running 2 packs, then split them to either side.
Mine is mounted with the batteries in each sponson.
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Tyler Garrard
NAMBA 639/IMPBA 20525
T-Hydro @ 142.94mph former WR
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