I think that for tp dotsies should be reformulated. As has been noted, we need only four dots to do the tp alphabet. In that context, it would be useful, I think, if the vowels all sketched out the standard, making it easier to spot the difference between high and low, especially for free-floating dots. Of course, once a scheme is hit upon, the patterns of the 120 or so words would be quickly learned and the details unimportant except for proper adjectives. I haven't done any details on this, either working out the best vowel choices nor what would make the various words most distinctive.