
The GLS springs should work well for double-leafing. I don't think Hugh used GLT springs for either of his.
The S70 had a whole new engine, Andy. It's back in action as of last night, but I need to replace the PAS pump...AGAIN! The 960 one currently fitted is still noisy (although not as bad), but more importantly it has a slightly different pulley, which pulls the belt out of line on one of the idlers, and undoubtedly contributed to the failure. I'm off out in a moment to attack those pulleys...

cheers
James