First off, sounds like a nice baby. Second, I hope this isn't the quiet before the storm. He will pick up nasty habits but nip them in the bud! Sounds like you are on top of that with his nipping.
Taking him to a show: don't know. Do you want exposure or do you want to show him? If its just exposure go for it. If its showing, I think its pushing but your the only one that knows how he takes to new settings.
Secondly, I would personally perfer the first option. Maybe more expensive but you'll see him more often. At any rate, have fun with him. Do all you can with him. I would. The more exposure, the more you do with him the easier the training.
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