It is easy to send money to a Bot at the wrong time, and not get the full value you sent back even let alone gaining more. Try this list https://s3.amazonaws.com/yabapmatt/bottracker/bottracker.html#bid<< it shows you the maximum bid to send for the various bid bots so you do not send bids when they are already at capacity. If it says 0 for bid don't bid, if it has a value that is the maximum - you don't have to send the maximum anything between 0 and the Maximum will do - but don't send more then the maximum or you won't get the benefit back.