Yep, I've got stop market orders on 40% of my holdings (up 245%).
But I don't use a dollar figure like $2.00 or $2.50, I use trailing %'s which automatically adjust according to all new intraday highs, and then I stagger them down, like 15% of holdings at trailing X %, the next 15% of holdings at trailing Y %, and the next 10% of holdings at trailing Z %.
Even if all 3 orders get executed, what's the worst, I got back more than my original investment and I still own 60% of the remaining holdings for free.