Lowering Ride Height (Ohlins Rear, Hoop)

Ok, so I've noticed that now everything is fixed that I am leaning forward on my wrists.

The front forks are set up to 'factory' settings from the book that came with the bike.

Is the best solution to this to make the spring shorter at the back.
I have tried softening / hardening the dampening(?) (the knob on the cylinder), but this still leaves me feeling I've my arse in the air.

When I first had the Ohlins (on the other monster) I had standard bars, now I have clip-ons (which suddenly made sense as to the position to me the other day). When I first had clip-ons the standard rear shock was on it's last legs and somewhat knackered, so of course I was sat lower.

Obviously I should have though of all of this before fitting the Ohlins.

In order to make the ride height lower, can I just screw the Ohlins shorter or do I need to remove the hoop first and shorten / screw in that as well?

We have some bricks and wood still from the shock replacement and know which tools fit so it's just the adjustments.

I'd go hassle slob but any time my suspension is mentioned he goes white and runs away ... can't think why ...