So whenever I dead lift (standard, sumo, straight leg) my hamstrings are excessively sore for a few days. I can squat heavy with no problems but if I a do D/L's I limp around like an old man. I am sure I am a little tight in the hamstrings but I do stretch and do stuff I see on the mobility WOD. My general mobility isn't that bad I can squat to the ground easily and in good form and I am more limber then anyone I know. I have gone through times of D/Ling around twice a week to see if it would help but it didn't seem to. When I do D/L I am doing it in a 5x5 program so I am not going to my max every time or anything.
What sort of warm-up do you do before jumping into your working weight?
In the context of the D/L, programs like Stronglifts 5x5 don't actually make you do 5x5 on the D/L, but rather 1x5 because you're already working a lot of the same muscles in the squat, and the D/L is more taxing. So if you're actually doing 5x5 on the D/L and still squatting several days a week, consider switching to a 1x5 on the D/L and see if that helps.
Hammy, DOMS is highly correlated to the eccentric phase of a lift. Soreness is also unnecessary in order for you to get stronger, so the simple answer is to eliminate the negative portion of the deadlift.
Set up as normal, pull to full hip extension, and drop the weight.
Voila, a concentric only deadlift that will almost certainly leave you NOT sore.
The only issue is whether or not you workout in a legit power/olympic lifting gym. I know that PF gyms have a "lunk alarm" or some other such BS that goes off whenever a weight is dropped.