If you could lap the tram all day I would be very impressed. Sam (Aenigma) is referring to 4,000 feet of vertical drop at Jackson not a base or summit elevation. The base at JH is around 6,400 and the summit around 10,400. Its a huge mountain. Last year I got probably 50 days on the snow and I dont think I could have lapped it without taking a few breaks last winter when I was there. Obviously I never tried because the tram wasnt there. 4,000 vert is alot especially when it is all very steep. Dont quote me on this but I would guess its all probably 30-40 degrees on average. Obviously there is alot steeper shit.
Back in the day when my dad and his brothers were skiing down there they would race the tram back down from the summit. 15+ years of ski racing prepared them for this type of thing. The new tram is so much faster that it probably isnt possible with the new one.