I'm a web developer in a very small company. when I started out I intentionally asked for a below-market salary (and got it) with a promise for a raise once I'm settled in and everything seems to be working. Since I've started with such a low salary I can't possibly imagine that simply asking for a raise will do me much good, which is why I'm thinking of asking for a rather big raise (~25% which will put me on average-market salary) and compromising for a bit less. I know that I deserve such a raise and that I'm essential enough that I could realistically ask for it but the problem is that due to other obligations I've just reduced my working hours.
I guess the main question is whether asking for a raise at this time really appropriate (Assuming I most likely will get it)