i'm satisfied with that 2 shuffles until i find myself looking for a new effect to learn and i said to myself "i want the roll over aces by derek dingle" that i watched a year ago. So i learned it through classic rendition vol. 3 by michael ammar the dvd teaches the roll over aces in great details and guess what the trick needs my most hated shuffle hehehe. so i decided to learn it seriously, i watch all the sources of zarrow shuffle that i have like "the zarrow shuffle by herb zarrow" and "zarrow shuffle by jason england" it really helped me a lot. After that it become my habit to practice it whenever i am holding my deck of cards. There's so many things you can do with this shuffle that can't be done with the other shuffles. Right now it's one of my favorite card sleights :D
So the lesson that i learned here is never neglect a sleight and say to yourself that its not worthy until you learned it perfectly. specially the classic sleights because it won't be a classic for nothing.
if you want to know what happen to the roll over aces that i'm learning that time here's the product :D