I wanted to check if my opening rotation is a good one or if I'm doing anything wrong on it.

HT (IR) > PH > ID (PS) > DS (BfB) > CT (Jump) > TT (DFD) > VT (LS) > FT (SSD) > HT (Potent Posioning Potion) > PH (Leg Sweep) > TTT > CT combo

The reason I put PH up first, is because I haven't seen the DPS increase from using it after CT. Phlebotomize as far as I know, isn't affected by piercing resistances, well the DoT part isn't. So the only thing it gains is from the BfB. But is delaying your PHle for 3 GCDs a dps loss or increase?