Crossing pull-pulls may create a better exit angle for the cable/clevis/surface horn.

As far as the Hitec 225s, Dubro has some decent large-style horns (I think) as well basic pull-pull hardware. There are several folks who pump out pull-pull setups, but they escape my mind at the moment. I sometimes even concoct my own with copper tubing and decent wire.

Quickie note about using 225s on a 40-size plane: Are you using metal gears? 225s do strip on occasion when attached to larger surfaces (like on 40-size planes). I love the 225s and use them often.. but am wary about them stripping on planes such as my Pen Knife and Ultra Stick 40.

-Juhan