Hi Carbo, Congrats on your first crop...Very exciting isn't it? I picked my Cogshall last year when they started to get a nice color/blush to them...when I squeezed it, it had a "little" give not rock hard anymore. Here's a few pictures of what they look like before I picked them. One of the good things about Cogshall is it does color up nicely when they start to ripen where some varieties won't...I picked some of them and let it ripen on the counter for a few days...I was afraid if I waited much longer the racoons and or squirrels would have had it instead of me,lol...like they did the year before that!!
Here's the best part...Yummy!!
As far at tipping the tree...I did mine as soon as I picked my fruits...actually to give the tree the most growing season...I "tipped" each branch as soon as I picked the fruit off that branch. Of course you can wait and do them all at the same time once you've picked all the fruits...up to you.