That was my plan, but my brother and I share our Xbox games (you can share digital copies with one other person). Since it magically appeared in my inbox, I gave it a go.
Absolutely fantastic game. But it's very long, and that's assuming you don't read all of the lore. The learning curve is little high, nothing crazy, but I won't be getting any noobies to try it. Lastly, I hate searching every stupid crate, body, etc. but I'm sure I'll miss out if I don't. Oh, and absolutely fuck that neural network "puzzle" and it's clunky controls.
Otherwise, decent plot, lots of unique battles, good voice acting, many, many different tactics. My favorite game in a while. So I'm taking an hour or two here and there, and switching it up with other games when I lose patience, and I look up the answer if I don't feel like searching on a quest, to save my sanity.
Have fun when you find a good sale.
I don't think you have pins at all. It looks like you just pull the string through the hole. That 'pin' is just the end of the string. Pull a new string through and the bead will just stop there.
If you haven't changed strings before, YouTube it. It's not difficult, but it's easy to break one by going an octave to high and what not.