I haven't tried front-squatting. I had to look it up. I used twenty pound weights holding them like I would a suitcase and did 12, 16, then jumping squats of 12. I used to hold weight above my shoulders, but I don't know what is the best for me now and I just started exercising good again so I wasn't going to raise it above my shoulders.
After the squats I did very little bike to make my to make my legs and knees feel good after the squats. Not much, don't want to do a lot of cardio as of now since I want to gain weight.
Squats are a badass workout.