Just wanted to mention that tires are a pretty important aspect here. Regardless of if your tires are new/properly aired up if they are a subpar tire/design they will not hook as well.
For example, my mustang makes MAYBE 200 horsepower at the crank currently, full suspension and gears, it can hook for days with proper tires. I put cheap nankangs on it and spun all around town. Went back to a nice BFGoodrich and no spinning at all.
On my 04 F150 that I traded for the SHO, I could spin the stock goodyear tires in reasonably dry conditions while in 4x2, even with decent tread life. Upgraded to a more aggressive treaded tire and never spun throughout the life of the tire.
Also, temperature is a major factor. My SHO hooks pretty well in 60+ degree weather, especially after a little driving to warm the compound. It always spins on a brake boost launch, no matter temperature, especially with traction control off. However, normal driving in cooler temperatures, the traction control light is pretty much consistently expected if I lay into it.
