A friend has a 18 Dm in a titanium +14 chasis lsr made it , +14 swinger , 48 lectrons , billet cases and the hole nine , last 2 times at dumont is Ben one of the top contenders even beating a couple of triples , 18 dmx , 24 twisters and what not , and it seems to be a some what reliable consistent bike , also jockey does come to play , specially in grudge /hill shooting , but I think all around 18 Dm are a good platafform , a lot of people run LSR chassis , and they do ride pretty awesome , i myself don't have much to compare it to besides a hybrid chassis and a stock one , I just think it's the way you set it up and can get it to work , there is a couple people from the stock frame mafia like JT that make stock chasis haul the mail so again chasis setup comes a lot in to play , wich ever or who ever you go with will probly point you in the right direction , here is a lil video of some racing in dumont