Fully agree,but the OP" knows" the stock us going to double in the next 3 -6 months..Which is,why I said if you don't mind owning the pig on the way down.. Otherwise I would buy the shorter duration call and roll..
Makes sense. I think OP probably wants to add some leverage but in the meantime avoid exploding margin requirement on the way down. The margin requirement for risk reversals can go up significantly if the stock drops big. On the other hand, calls or back spreads don't have this concern but suffer from time decay.
I just ran some scans in Orats and it certainly looks like Call 1x 2 call backspreads are right up there with Risk Reversals...Im not accounting for skew or overall level of vol...I also didnt look at ratios greater than 1x2,which woukd obviously work given his assumptions..Nice call,no pun intended