Block girdles, yay or nay

I had my machine shop install the Hughes girdle on a 360 engine I was building. The machine shop recommended one because they put them on all the small block Fords they build. So I bought it and had them machine the block and caps for it. When I picked the block up, the owner of the shop did not feel that it did much at all, and wasn't necessary. So in my application, my opinion is it isn't needed. I think a better main cap would be more beneficial than a girdle.