I've heard amazing things about those cigars, and sadly it's one of the few Oliva's I have not tried. Personally if I have 5, I give my first stick 4 weeks and gauge from there. The feel and smell will always tell you, or rather tease you, when it's ready
I gave mine about 3 months and they were great. I can't wait to see what a couple years will do for them. If you like them, watch Holts cigars. Every few months they do 10 robusto size for 39.99 as a special.
Head over to cigar bum . com for a good non profit cigar forum!