maybe at times, who knows. i go on guitar binges and purges usually; i will hardly play one day (or ill just **** around with some indie or folk stuff) and the next day i will practice like mad. i find it works better that way, gives you separation, it helps your brain learn better and more efficiently, and you also get a ****ing break to say "ok, today its ok that im hung over and only got 3 hours of sleep, im gonna take it easy on guitar for today" or whatever. i mean, its just impossible (not to mention depressinga nd pointless) to shred for 15 hours a day for the rest of your life. just put that into perspective.