Based on my experience I have been very happy with both the pre assignment contact and the post contract support and payment while on assignment. I have been also able to secure ad-hoc work ferrying aircraft between assignments.....all with Sigmar, where as I have had lots of promises from DPI with nothing materialising. also my understanding is that Sigmar is significantly bigger than DPI with divisions for pilot recruitment, aircraft ferry flights as well as pilot training and type ratings on the A320