Quick question that's come up when wiring a garage/workshop. I ran 3/4" conduit, and in one length I'm planning to run 3+1 10 AWG for a 240V/30A circuit, as well as 2+1 10 AWG for a 120V/20A circuit. I've intentionally oversized the 120V/20A circuit as I'd like the option of upgrading to a second 240V circuit in the future. If I ever did that, I'd obviously need an additional hot wire. I know that I could leave a pull string, but is there any issue with simply pulling an extra wire now, and leave the ends capped with wire nuts in the sub panel and a junction box?
EDIT for additional details: It is EMT. And this is actually coming from a subpanel. I ran a 60A sub to my (attached) garage, and am now wiring these circuits from that sub. So it's actually a short run of wire, and leaving the extra wire is a negligible cost.