Not a great idea if you're planning to have anything that resembles an intense weight training session directly following the fasted cardio. Everyone I know who does fasted cardio will do so first thing in the morning (fasted) and then come back and complete their weight training session in the afternoon or evening. That way you have the opportunity to fuel your body & prime your muscles for a properly intense weight training session.
Same here. With my schedule I either train at 5am or I won't have time to train that day. Before I got shingles I was making great gains and people were commenting on the changes I was making. All weight training at 5am is fasted and I go to bed around 1130-12.
And I'm not disagreeing. But there is a controlled study that tends to demonstrate being fasted doesn't improve fat loss. I still do out when cutting because it's just easier but I'm not sure the science backs up the anecdotal observations.