What is the best Nytro for Snow Drags?

[machz69]

Let me know what you know is the better Nytro for 660' snow drags?.. I know the theory that a longer track should be better but that's not always the real world case. I'm sure some of you guys actually do drag race. Is the shorter track better then the 144' ? This is for stock class.
Looking to get the kids a new sled that they can ride and drag race on some of the weekends. I'm thinking that the 121 is the way to go but what to hear it from people that know.


Thanks