M35 cable installation tips?

[bontie]

Do any of you have any tips/pointers on cable/casing installation for M35 bars?
The bars require a bend which is near 90degrees between shifter and the internal routing slot on the underside, I managed to tear the casing of both brake cable housings and it took hours to finally manage.
I am sure someone must have come up with a trick of sorts?

Pushing casings in with the shifter removed complete was an option for me at one stage...

[sigismond0]

What shifters are you using? The routing is subtly different between the three brands, and I can see that giving you trouble.

[bontie]

Campagnolo shifters