ORIGINAL: don_87
The general consensus is to use metal.
The don't break in crashes.
If you want, you can get HS 65 hb, then upgrade to metal gears if you wish (drop in replacement).
Gear sets run obout 18.00. ( for metal)
I use 56's for now. (your stuck with carbonite)
Your call.
From the prices I can see online, it's only $10 more to get the metal gear version. Saves more in the long run in my opinion.