It looks like most boats have gone to cross sheeting or winches mounted on the cabin top.

I was wondering for the cross sheeting if anyone had thought about using the lopez blocks for this?

For those not familiar with the lopez block, it is a cam cleat mounted to a block. This allows you to pull in the genoa sheet and cleat it to stay in place before wrapping it around the winch. These are used on the J/24 for example.