For those disregarding TKD as a ineffective style, look to Cung Le's fights. He uses alot of TKD in his fights and he is very effective with it. You just have to realize that mixing it up instead of sticking to one discipline is the way to go.
So in my opinion, i would say go ahead and stick with the TKD as it is effective it just isnt used as much in MMA or isnt used correctly so people are quick to say it is ineffective.
"Corazon de un Leon"
To whomever keeps deleting my sig, the size is 408x220 the rules state it must be smaller than 420x220, thus i am not breaking the rules.