Is anyone out there using the Delta 36-937 10" cast extension wing?

My partner is wanting to replace a 10" stamped wing (on a Delta
Contractors Saw) and it seems that the 10" cast wing is now the
replacement option. My Contractors Saw has the 8" cast wing but he
can't find that one available.
Anyway, he found the 10" wing on Amazon (and a few other sites) and
the only review was very negative so he's a little gun shy. I just
thought I'd ask if anyone here has experience with that particular
extension wing.

Thanks.

Mike O.