These cars work at a certain weight and weight distribution, and not at any weight or weight distribution. The reason we have a 950g weight limit is that if you run them lighter they are not as good, and if you hang weight outside the chassis width they don't handle well at all.
Whilst I appreciate that people are not too keen on 1S because they already have a 2S pack, or they don't like running a 2S speedo with a booster or receiver pack, the ideal combination for these cars is 1S with a Hobbywing 1S v2.1 or this new one from Schumacher...
http://www.racing-cars.com/pp/Manufa..._RC/CR173.html
...neither of which need the receiver pack or booster. Almost any 1S pack will do, but consider the SMC 6000 pack as it is very good and inexpensive for a quality pack. one should do even for a club night. HTH
