Tuberolabium not progressing, what to do?

[MakiWaki]

Hello orchid friends: there is so little information on Tuberolabiums out there that I would really appreciate your input and advice. I purchased this one a year ago at the local orchid fair in Santo Domingo, Dominican Republic where I live. It had the 2 longer flower spikes and 5 full leaves in excellent condition. Due to my inexperience I admit it was neglected a bit but from the past 6 months I’ve dedicated myself to its care. I repotted it in fine and medium pine bark and a little of sphagnum at the bottom. It now sits on a pebble tray and I water it twice a week and mist every other day. I notice it has a new developing flower spike. Should I cut the 2 older flower spikes that never bloomed? What’s going on with the leaves? Am I overwatering it? Should I mount it? If I mount it and give its roots more air, will it set it back terribly? Thanks in advance. J