Wow. I go to sleep for a couple hours at night, get up and open my lap top and there's 5 pages of GT and DBZ plot hole discussion/argument.
I have a personal trainer, who loves DB/DBZ/GT just as much as me, he said he likes GT not because it's story, but because it tried to bring back comedy from DB and the action of DBZ, and I like it for the same reasons. I don't look or care about plot holes in any of the series because it would distract me from the actual show/story.
That's all I'll say on the matter.
Congratulations Riddle!!! I wish I was that ball-z(bad pun) to buy him! I hope you are not disappointed with your purchase.