I must agree to resist weight gaining mods, no matter how slight the weight gain. While the wing is quite substantial and will support additional weight, strange things start happening as the plane gains weight. The need to fly faster to gain more lift, starts to add stresses to areas of the plane that would be perfectly fine, flying it at or below it's described weight. These additional stresses will eventually cause fatigue in the airframe. Anyone who says that foam doesn't fatigue, has never experienced a wing breaking in half in mid/ level flight.....With the E-Starter, weight is definately your enemy, and stronger is not better, if it means heavier.....JMHO...Pat