function Player::Grow(%this, %max){
if(%this.getScale < %max){
%this.setScale(vectorAdd(%this.getScale(),"0.25 0.25 0.25"));
%this.schedule(200,0,grow, %max);
}
Made a mistake in the schedule, but I can't see how that would affect Instant Grow. I made the increase in scale smaller, that may help.