The spec dry wts are off a fair bit! I can't comment on the Select Suite, but our 38RL3 was 1500lbs heavier (scaled) right out of the dealer before loading a toothpick in it, also it had no water at all. It did have propane full and 2 batteries, which they don't count. From what I understand they also don't count most options, like heavier suspensions, bigger tires, trail air, AC units, TV's etc.
The Average 36 TK3 MS rolling down the road loaded for weekend use with most of the usual options will have a 3400 plus pin wt and gross out at 16- 17K plus. Our 38 MS has a 3600 pin and gross at close to 17,800 lbs loaded for weekend use and about 1/4 full water. Those are scaled wts.
The only way to really know is to scale the trailer and truck and separate scale the truck and get the accurate wts. When folks give your thier wts for info, make sure they have done that. Guessing from the spec sheet or even the placard on the trailer will not be even close. And a lot of people do this.
If you post your question on here
http://suitesowners.com/forums/index.php , there are more folks with specific info on the Select to maybe help you out comparing.
They are no light wt trailer for sure, but they are REAL nice! Good luck with your decision!
Bill