I don't know why this old thread was revived, but I'll also chime in. I say Luna over 400b. I would even argue luna over 400 te because of the price difference. I have tried both extensively, and when it came time to decided again which to buy (theft) I chose the Luna.
I feel the 400te is slightly better than the luna as it has a few features that are nice such as micro click drag. But overall both reels are very similar however, the calcutta te costs around $125 more. I couldn't justify the extra cost for added benefits.