I should have been more clear. Too much catalyst dissipates with an acrid, almost vomit type odor, often accompanied by a pinkish color shift and/or haze. This is a different smell than the normal outgassing of formaldehyde. In my opinion, companies that use a diluted catalyst are just trying to sell more product. A gallon of catalyst at 3% lasts a lot longer than a gallon at 10%. 3% ratios are not difficult to measure with reasonable accuracy.
Crew weight. There is a wide range of crew weights that is competitive in the Viper 640. The average of all crew weights at the 2015 North Americans: 550 lbs. Crew weights ranged from a low of 490 (#10) to a high of 650 lbs.
I have a GMC 2500HD truck. A label in the glove box says the cargo weight rating is 1844 lbs. I also have a 8-1/2 ft camper on the truck, and the camper's wet weight is 2275 lbs. So I am 431 lbs over the rated cargo weight, yet I hear of other individuals hauling 10 and even 11 foot campers on their 3/4 ton pickups.