separating nano/weap is interesting idea but as a trader player i find it a bit complex to deal with, especially in PVM/Twink where the system is totally fine like now. & that would multiply the number of our drain nanos by 2 ! messy !
in the end that would only partly solve things, while to me the real issue is the final amount of skill/aao trader can ladderdrain in PVP, not the fact trader can drain nano+weap at the same time.
i say it again : i'm all to let traders (& agents) twink CL like haxxorz & get insane AR by pre-draining mobs around a NW field ; the only problem i got is when they get any decent twink totally OE in 7 seconds.
worse example : 42 sloob trader casting nanites on a 38 opponent. that's senseless. drains need a cap according to what every title can reach in AR.