Hi,
Well done he is absolutely lovely
I had the exact same problem with my first baby boy, he was posterior (back to back) which is a difficult labour anyway and when I was coming to near fully dilated the midwife said "you've got a lip that's not shifting, I'll shift it for you now" as I was having a contraction she rammed her hand up me and moved it, I almost flew off the bed to smack her
I also had an episiotomy and did eventually manage to push my little man out, but he was 7lb 1oz, 9lb is prob impossible! Glad you had good care, I considered delivering at the Heath this time, but will stick with the Gwent (although I'd rather not) as it's so close to me. Enjoy Zac he's a smasher