Street Luge (with New Modifications)

I am posting this to show everyone what I have done to my street luge, previously shown in my other instructable. It now works ALOT better, so here it is. 
-I replaced the $9 plastic trucks with metal trucks (plastic trucks shatter when you run over large cracks. I learned that the hard way)
-I got even better rollerblade wheels to replace the old ones
-I took of the wood that was on top of the 2x4 
-I found that if you apply alot of wd-40 to the wheels, they spin alot better
-I replaced my old back/headrest with a single piece of plywood
-I replaced the old seat with a single piece of plywood
-I added in handholds
-I put the front trucks even further back (to help the turning.)
-I put the headrest further back so I can lay down more and become more aerodynamic 
-I added a hook on the end so I could easily pull it behind me