Axtec and Cherokee drivers out there that like to use "tips as mains" instead of the inners.
Try this
Taxy down runway and do rolling takeoff out of the 180 degree turn.
A partially filled tip will uncover the fuel line and affected engine will give you the silent treatment at 150-200 feet for quite a few seconds.
This very aircraft gave onlookers a fright at Hamilton Is. the friday before the ditching. 3-4 seconds of silence after t/O at 150 feet above runway.
Some very gun shy people in that hangar.