Any experience/thoughts on the wisdom of this product?

http://www.gowesty.com/ec_view_details.php?id=4454&category_id=1201&category_parent_id=

From a look at the archives, failure of those original studs is not unknown.

It seems a simple enough swap, but I don't need the practice and the
bloody knuckles if it is not a serious concern.

Also, from one the photos on that page... can someone tell me what
this part is (circled):

http://members.cybertrails.com/~ahwahnee/GoWesty%20Alt%20Bracket.jpg

I don't seem to have one.  Thanks!

Geo