Oh he's such a little sweety!
They're definitely getting up there, I'd say. I usually towel my guy and take a couple mm off the ends with a nail clipper, being careful to avoid the quick. Two people make quick work of it and a treat afterwards makes him forget all about it.
Mine usually starts to chew on his nails and shortly thereafter he starts to get stuck on me and on other fabrics. Grooming perches and stuff just don't seem to do much.