First of all, it is suitable for right and left handed people. 60 seconds is enough for them to master the art of the straight cut. Key is to ALWAYS place your cigar facing the Les Fines Lames logo, on the flat side of the blade. Never cut it on the other side(beveled), you will not get a straight cut. Pro tip: once the blade touches the wrapper, apply very slight pressure to the cigar towards the blade. You wanna see it, check the instructions with photos!