have to agree with Prophecies at the point you got it in the last screen i would just say fuck-it and get on with my diffuse. if this is for a game model no-one would ever notice that.
Seriously, I think you're being anal about the seam in that last pic. You need to zoom in super close to even notice it, and there isn't even a diffuse map on it yet. Once you get a texture, there is no way in hell you'll even know it's there.
I'm pretty sure those hard to see seams in the last picture are a combination of having slightly different UV edge sizes along with the actual UV edges being at different angles. As everyone said these seams are acceptable, and when you have your diffuse applied it will be even less apparent.