The classic choice would be a Webra Speed. Hanno style.

I think that using 1/32" sheeting on cores is a great way to save weight. Fuse sides can also be thinned out. The rest of the concept is easier to follow in order to provide the required shape to the fuse.

In fact, I think I'll switch to 1/32" balsa sheeting on my next 60 size core.

David.