NoHairNoFair,
When you get longer hair you get your volume by the hair length. When it's short you need more a little more density. Sebtizzle, remember that you want to match the hair density of the hair system to your sides. I'll bet you have good density on your own back and side hair. And you're right about needing more density if you're adding gel or wax to the hair system as those products take away the 'fluff' in hair.
Regards,
John
http://toplace.com/