I am still not on my Desktop yet, but will post later, reson is the site I have has dual carbon horns for gluing into surfaces, I promise I will find them and post, I used to make my own, but since finding these its easier to buy them.
Reason I am not on my Desktop is I am stuck in France unable to get out of my driveway, its -15C and the loo water froze this morning, I am not used to this being a soft South Englander.
Mike