I did near same as SteveC, unmodified 944 shoe spreader, M5 bolt/nyloc, ~16mm off the guide tube, 3 layers of heatshrink to splice to unmodified T1 cable/outer. As I posted last summer, I intend to modify the spreader, similar to the pic in the gallery.
I also plan to cut the elbow of the end of the T1 cable outer then make a collar to gain the neccessary few mm and make a neater, more rigid and straighter splice.
I'd like to be able to stop my car using the handbrake, or emergency brake as it's sometimes called. And some times its only called a park brake. Why is that?
I'm very fortunate to have unrestricted access to one of these:
http://www.arex.nl/dispmodule.html
The 944 handbrake needs all the help it can get. Many modern cars use this idea of a drum brake within a disc brake. I examine vehicles for VOSA (formerly the Vehicle Inspectorate) Class 4 and 7 MOT daily, I expect to see this type of brake excert mid to high 20's % of the vehicles mass as braking force during a rolling ~4mph handbrake test. I'm currently only getting low 20's inside my '87 951 rear discs. The minimum (in the UK) is 16% regardless of imbalance.
Compare that to the 30-40% a stock beetle can pull (after an overhaul) One healthy handbrake and one non-existent, on a stock Beetle can pass this test- easily. 944, no chance.
Matt