How much did you tighten the BB guide? I've had frames with a similar issue, but it turned out I screwed the guide in too tight. At first glance I thought that the closer I get the guide to the frame, the more room the cables would have, but for some reason I don't yet understand, that was not the case.
I then tightened the BB guide only a tiny bit (hardly anything at all) and just relied on the cables to hold it in place, and everything ran smooth.
This was a different frame though, so this may not apply to the 1056.