I can guarantee you that well geared enfo can **** trader extremely fast, ask deltaforces "Get more NR" argument sadly is true here. Divest lands easily, but plunder doesn't. In a duel, we don't take the risk to spam plunder and decrease our healing if you have a high NR. With high NR you, you most probably will have divest in your ncu, but that is enough to kill the trader with proper equipment. This is why I have very tough duels against advies, which are usually nr1.
As I said any "hard dd" profession @ 170 can alpha trader easily. 170 agent targets you on open pvp and you are most likely dead.
And for me personally, I have max AR setup. My alpha is strong, I have setuped myself to kill my opponent even with 1 drain, or none.