Gah more bit uncertainty

I'm really doubting the bit I got is going to work since it's so dang thick. Someone suggested this bit:

I found this one, but I don't want to wait for shipping!  Even though it doesn't say it in the description, the URL indicates this is the exact same bit. I'm really doubting the bit I got is going to work since it's so dang thick. I just don't want to wait for shipping! Ugh. O well, this is the best price I've found (shipping stinks, though) and they have the blanket repair tape that I need to order. What do you think?

Read more: http://www.horseforum.com/horse-tack-equipment/bit-irritation-148001/page2/#ixzz2J3Ddv6SI