When I did my PB stuffed jalapenos last, I changed a few things.
1. I cut the peppers in half length wise (so it was like stuffing celery)
2. I soaked the halves in water for 1 hour
3. Then I stuffed with peanut butter and wrapped with bacon
4. Cooked them indirectly with peach wood, got the bacon nice and crispy, good smoke flavor too
5. Served them with Apricot jam on the side
They were fantastic.