FYI, letting pickles or cucumbers overgrow (beyond the size you normally see in shops) just makes them more watery with larger seeds. Better pick them earlier and let the plant use its resources to produce new ones.
I'm okay with this, I'm away for the next two weeks so there's no one to manage my garden except to water it. I'm going to give a few excess cucumbers to my neighbours before I leave though.
I'm also big into collecting seeds and have plans to save a few cucumbers to allow them to age naturally. At least I assume that's what I can do. This is the first year I've managed to grow cucumbers and not just the flowers. I also have a habit of letting plants grow a bit wild the first time as I watch how they grow. This way I have a better understanding for myself of how to manage them next year.
It seems like I could treat the cucumber plant sort of like the tomato plant, trimming excess growth to promote veggie/fruit growth but I haven't gotten that far with experimenting yet.