As another poster noted, consciously take up the slack on the SA pull, and practice a lot.
I don't have much trouble with the transition, after thousands of rounds of practice, but even so I just recently bought a DAK triggered Sig. Its light double action only trigger is very easy to shoot accurately, and it has the same pull every time. No safety, no decocker, no protrusions other than sights and slide stop... As a CCW/defensive handgun, it's easy to shoot, easy to conceal, and easy to draw.
Cheers,
M