If you are comfortable with modding the thing and know how to solder and whatnot, I’d say go for modding it to all sanwa/seimitsu. If you have no idea about that stuff, I’d play with it till youre comfortable, sell it, and go get you a HRAP or TE.
You shouldn’t have bought fs3 in the first place, the cost and time to mod a fs3 is more than say a te or hrap3. Especially for players who aren’t very familiar with sticks, it would be much better to mod a stick with quickdisconnects than sticks that require soldering (which is your case). Anyhow, follow this thread http://forums.shoryuken.com/showthread.php?t=136372 if you decide to mod it.