Need help for next long run shoe (SB2 Issues)

I'm so torn right now. My current long run shoe is the SB2. I love the ride feel of it. Very light shoe, fun bounce, moderately stable. The issue I keep having from it is it scrapes up the internal side of my right foot near the big toe / ball of foot. Every long run (10-15 miles lately) ends with blisters in this area. I've tried tons of different lacing type and socks but the issue always comes back.

- I stopped running with the SB2 as I recovered from a race and wasn't doing long runs for a week or so. The blisters started to go away. Yesterday I put back on the SB2s and even after an 8 mile run I had the blisters start to come back.

- Has anyone dealt with this? Is the SB3 better in this regard despite being softer? I really dig the light weight, bounce and stability of the SB2 but I really fear this issue persisting if I just get another pair.

- Every other long run shoe I look at is heaver. Not sure if that matters but i've appreciated the weight of the SB.

Any recommendations? Have people dealt with this issue in the SB2 or 3? Is the 3 better in this regard vs the 2? Much appreciated any info.