I do the fork thing for elderberries, but for red- and black-currants I pick them individually. It's a race to get to them before the birds eat them all, and if I waited for the whole truss to ripen, most of them would be gone before I started picking them. Don't worry, I always leave some for the birds to eat, I'm not greedy.
I've had mine in for about 5 or 6 years and haven't pruned them at all. They've been absolutely fine, but this year they do look quite straggly. Not too bothered, though, as I took cuttings last year to make new plants which will be planted at the allotment this year. Before I dig the old ones out and dispose of them, I'm going to take some more cuttings as a kind of insurance policy in case the others fail.