270 is what I am looking for. If I would get serious about my diet again I would be there in a short time, but with riding I am not afraid of eating some carbs. My LBS didn’t have the Marlin until after I got my Tiburon. It is a great bike, and if they can fit you to the bike I am sure you will be happy. I am sure they will switch your tires without even batting an eye.
If you get a chance after tomorrow, check out my web page, and I will have a shot of my tires and rims posted. As of yet, I can’t find anything about my bike I can complain about. I do think I am going with a solid stem and a different seat. The seat is only comfortable for about 20 miles. After that, I need to get off for a while. I think it is the seat is to soft, and hits me where it shouldn’t.
Anyhow, let us know what you end up with, and how the LBS treats you.