[Ravique]

It depends you know.

First two options ( if you really mean 5 or 10 ) ar too small, but if you mean just some rought numbers, i think they can work if your system is right, of course to figure hose numbers for your system you need to do a lot of testing.

I haven`t used ATR or Time based trailing stops so i can`t tell you much about them.

I once used a parabolic sar trailing stop, worked pretty nice.