I converted a Striking Scorpion Wraithlord
lst year to have a Scorpion's Claw count as a Wraitsword. I'll shamelessly plug my modelling skills:
I thought about the same issue you bring up here and decided to let sleeping dogs lie: I didn't bring it up unless my opponent questioned me about it. Then I clarify, "Yes, it counts as a Wraithsword." or "No, it's just there for decoration." Since I posted the P&M on this guy, I added a bit of brass rod to mount a second heavy weapon and a plug with a bit of plate to cover it when not in use. I've got two more lords to convert to Aspect Warrior style: a Dark Reaper w/
EML and
BL and I'm thinking of the last as a
DA w/ shuri's, a shuricannon, and scatterlaser for the dakka.
When all else fails, share your army list with your opponent and expect him to do the same. Tourneys require you to do so and unless you're playing a friendly game where list secrecy is part of the theme of the mission, I'd expect it.