DBZ: Distinguishing SSJ1 from SSJ2!

This may be an odd question but I found pretty difficult to tell the difference between Super Saiyan 1 and Super Saiyan 2. Sure SSJ2 has the bolts flashing around the aura but other than that, it was difficult to separate the appearance of the transformations, especially with Vegeta and Gohan. Can anyone give me some details between the two transformations?

electricity and spikier, more detailed hair, at least that's how it was described on planetnamek.com during the time where fansites ruled the world.

Bigger mucles, too. Ask this in the official thread and you might get better answers.

http://www.killermovies.com/forums/309912_1-the-official-dragonball-z-thread

Teen Gohan its reaaally easy to tell the difference. Vegeta, and Adult Gohan yea I admit it's hard but they don't really get shown at SSJ2.