Edited: 12/5/2007 8:17:55 AM by Dan48p
from what i've read the HF wheel has (complete radius) dies. where as the most popular ones for guys doing a lot of metal work have flatter centers so they have a larger contact patch.
i guess the complete radius ones have a tendency to put deep grooves in the metal not sure never used one though
check out
http://www.metalmeet.com
there are a lot of guys over there that have been doing this kind of shit for years and years, they have a lot of insight.
again, i've never even used an english wheel so i can't say anything from experience and i'm not knocking anyones tools or design.
again, metalmeet.com has a huge forum, i'm really suprised that i don't see more minitruckers on that sight.