Haven't been able to double, but have been fortunate enough to make several buys since mid-February under a buck and have added another digit to share count.
Tripled up, and will add another 30K shares next week to round up to 250k. I'll be tapped out at that point, but I just can't resist at recent price levels. Between now and year end, I look forward to watching my CTIX account grow. Good luck to all longs here.