As have been spoken here, on balance forums aswell as in game suggestion, there is somewhat need of makeing trader drains less accurate w/o cripling trader abilitis of PVM/RP (like wrangling).
Now, most have seen idea of lvl locking drains (which I was suggesting like 3 years from now?). Its one of the solutoins. Now I want to share other, problably better solution.
Rework whole drain line, so it will work in 2 diff ways.
1. NPC (PVM):
If trader lands drain, mechanics will be the same. It will allow still to chaindrain target for many purposes (survivability or for wrangling somone else... ect.)
2. Human player:
When trader lands Drain, in NCU should appear DRAIN A nano (hostile), which will block landing other, from same line. This should work in same manner for Drain B.
Now, in PVP, those good twinked in NANO skills will land better ones, and wont be equall for gimps cause LVL lock.
It will also prevent for low TLs to make -AR, or weapon 0% (in most cases).
PVM wont be affected at all, aswell as uniquenes of twink abillities or wrangling at low lvls.