personally i wont go for SGB early, typically i wait until i feel the bonus damage is either sufficient, if i can coordinate the team to take goldminer early, or the opportunity for invade appears likely. consumables, battery, boots and health are the best investment early on for supports i think.
anyways your original post wasnt about the stage at which contraption is bought, rather it looks as though you're saying it is a waste altogether. so perhaps you sell your SGB if you reach late...
Posted: Dec 25, 2015