Supscriptions + Butt-sinkers
Regarding new subscriptions: I subscribed on Jan 3rd and still wasn't in time to get the Jan/Feb issue ;( They told me you'd have to subscribe by December to get their Jan/Feb mailing. Perhaps someone will bring an issue to the next events for those of us who couldn't find a Dog Sports copy anywhere.
Regarding butt-sinkers: my little Hannah was an embarrassment to Labradors with her butt-sinking first swims -- you're right, it terrifies them and they start to flail and further sink, which causes more flailing, etc. I'm amazed that Blink will jump in since Hannah wouldn't go near the water after her first sinking episodes so you're ahead of the game. We did swim lessons with her last summer (in a vest) and helped her learn to keep her butt up by luring her forward with a toy and a hand under her belly. It took a while but one day the little lightbulb went on in her mind and now we can't keep her out of the water and she dog paddles with her nice level body. Good luck!