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.
The gross vehicle rating or GVWR, which determines the maximum allowable weight for pickup trucks in the U.S., indicates that a half-ton pickup truck averages 8,500 pounds or less. Modern trucks have a higher average, with most of them weighing between 5,000 and 9,900 pounds according to their make and model. A three-quarter-ton truck can carry between 8,500 to 9,900 pounds, while a one-ton truck can likely weigh in over 9,900 pounds.