We have both... the csr came free... Ill use it.. as for buying a new one??? The Meziere family are wonderfull people,and long time racers, with are GREAT product. I would never buy anything else. best products weve ever used. Unsurpassed product support. Dont even get me started talking about there new starter...wow... awsome... At least give them a call directly.. see who your dealing with.. Just my opinion...thanks