Yerp I too went on a figure hunt here today in the UK ended up being pretty successful thankfully, Game had both Vader and Kanan, had my Anakin reserved from Smyths so got him no problem, went to Sainsburys who also had none on the Shelf but asked the guy who thankfully grabbed one from out back for me, Argos was also pretty bad stock wise none of my local stores have them but I've managed to reserve one for collection on Tuesday. However Yoda is a no show, none out on the shelf at my Tesco either and staff were clueless on it also, went to see if I could order it online to find the Light FX figure is listed under the same page as the regular Yoda figure so I'm not confident in ordering it in case I recieve the wrong one!
But overall good day, getting home with 4/6 today ain't too bad!
EDIT: Managed to find a seperate listing for the Yoda figure on Tesco's website under 'The Force Awakens, Light Up Yoda Figure, Tesco Exclusive' so ordered that for collection from my local store on Tuesday too.