It depends on how many other responsibilities you have or other activities you engage in, and how much you care about the project, I suppose. To me 10 hours of

It depends on how many other responsibilities you have or other activities you engage in, and how much you care about the project, I suppose. To me 10 hours of solid study after work is a lot, but other people might throw out some other stuff I do and be willing to spend it studying. I can’t comment on whether it’s a good idea. (I believe there is very much such a thing as too much work ethic).