If you are "almost there", and the issue is flexibility, do light/medium weight RDL's before your deadlifts. They work like magic to stretch you out enough to get into position. You can stand on a step if you want to stretch out further.
BTW, I have the same problem as you and just saw an SSC. Unfortunately there are no magic fixes. We just have to keep working on our flexibility and do our best. I wasn't "almost there", but rather very far from there. RDl's helped immensely.
Here is a thread I recently started about this topic:
http://startingstrength.com/resource...dlift-ohp.html