Hello and welcome Sorcha and CaptainTripps.
Sorcha - your profile isn't public so I can get my puppy pic fix! 
Sorry to hear your dh isn't doing his share of puppy care. Mine was quite hands off to start with, although I think it had something to do with him feeling he was being disloyal to Oldgirl, who we lost in the Spring last year. He's totally besotted now that I've made sure Pip is well trained and does do his share of feeding, walking and toilet trips.
Insanity - the link works and he is so cute! Same name as Simon Cowell's new baby.
I have spent a fair part of day watching a fantastic lecture by the American dog trainer Suzanne Clothier. It was about Arousal, Anxiety and Fear and helping trainers to understand the differences between them, recognise when they occur and approach rehabilitation. It's really helped clarify a few things in my mind re Pip's fear of other dogs and how to move forwards with it. Just the simple fact of saying that, when we say a dog is fearful or anxious we need to remember that it's far more than just a word - in that moment that dog is actually there with the heart pounding, clutching stomach etc real physical symptoms that accompany fear. The first and most fundamental thing we can do is make sure they feel safe. No training or rehabilitation can happen until then and we need to learn to recognise the individual dog's signals, so that we never push them past their safe zone. We can't work on helping them to develop the skills they need to handle whatever they're worried about until they feel safe. She's an amazing woman. It cost $20 to download, but was worth every cent.
It's made me rethink even bothering to take him in our local park for the forseeable future. His anxiety kicks in even before we approach the entrance and he clearly associates the place with fear. I have been trying, unsuccessfully to counter condition and now realise that it's never going to work. He can't counter condition his emotional response to the place because his anxiety levels are through the roof before we even get there.
So, I am going to try and find some way of helping him to develop the skills he needs to cope with having other dogs around in a place where he feels safe to begin with. It totally explains why I thought he wasn't generalising his feeling safe at dog club to our dog walks. I realised it isn't all walks, it's just that park and until his confidence and skills have developed enough for him to feel relaxed around dogs almost anywhere else, there is no point in keeping on putting him through the stress of going to our local park, as all it will do is freak him out and set him back. We need to build his skills and confidence elsewhere first and only when he's completely happy, start to address and counter-condition his negative associations with that park. That would be the very last part of the process, not the starting point.
I'm quite 
about it really, as if we hadn't had several bad experiences with out of control off-lead hooligan dogs there, almost as soon as he was allowed out, he wouldn't have the negative associations in the first place. He is a different dog in the other two local-ish parks. So cross with myself for not realising it sooner. 