Does anyone have guide wheels on a box blade?

[Mosey]

Is it common or uncommon to have guide wheels on a box blade? Do any manufacturer's have them as options, or do you have to make your own?

A couple people suggested that guide wheels would be useful on a box blade in the post <A target="_blank" HREF=http://www.tractorbynet.com/cgi-bin/compact/showflat.pl?Cat=&Board=implement&Number=45902&page=&view=&sb=&o=&vc=1>how not to make whoop-de-doos with a box blade</A>.

 

[Hoeman00]

On the other threads about wheels on rakes,I talked
putting wheels on rake that could be used on box blade
and rear blade.
One set for all attachments.