20x20x20 large big mike

Back in 2009 when I was 16 years old, I solved the 20x20x20 cube in 20 hours 37 minutes and 7.42 seconds. It was quite an accomplishment even though it was a rather slow solve. I think I could solve it in somewhere between 8 and 14 hours if I were to give a second stab at it. I just wanted to...