yeah they are cavity and they would probly be mid sized heads, what can i say they are a real cllassy no nonsense look which is what you can expect from any ben hogan club, you get a great response when you hit the ball well but the club still tells you when you have hit it funny, previously i was using my dads old powerbuilt grandslams he got in the late nineties, they were a much bigger head in fact i think they were oversize, but managed to get my swing quicker with consistency and i as at the stage where i needed new clubs theyve realy improved my game if you want some more oppinions this is the site i used to figure out if i wanted them
http://www.golfreview.com/cat/irons/...5_2940crx.aspx
if you have any other questions just ask il try and answer them
oh and as far as the tm hybrids go i can't realy comment ive never used those