Yeah, I didn't like the nickel coil... didn't get a metallic flavor from it, just was unimpressed by the performance of it and it seemed to completely lack flavor to me. I gotta say that I did get better flavor from the kanthal coil that I've even been able to get out of my RDAs though, so the fact that you didn't kinda surprises me a bit.
From what I've seen so far, any temp control device will work with any temp control wire... the only difference being that the "set temp" will not be accurate if using a wire type that it isn't set for. For instance, the Target is programmed with coefficients for nickel wire... so if you use titanium or stainless it will still control temperature, but if you have it set for 400°F, the actual coil temp may be 300°F or 500°F... you just have to pay more attention to the performance that you're getting than to trying to hit a specific temperature. The SS cCells should work on the Target without a firmware update, but the temps won't be accurate...
So you can run a SS coil in TC on the Target? I put my Reaper tank with a triple SS coil on mine and it told me "not a nickel coil" and switched me over to VW, lol! I can't remember if I tried it in VW or not. I just thought the little message was cute.