Go on the closest as it won't make much odds , I don't think there is much extra that you can learn in one or two days .
More important is your networking with the suppliers ,trainers and fellow cc at the training .
I went on the hard floor course a few months ago not for the course but to meet the person doing the training . And also met some great bussiness people whilst there .
Training is ongoing get on one as fast as poss then another