2 of mine in their 1st season, 20 month old now, they're not related (10 days between them).
Dog on the left & bitch on the right both have had a couple of digs & 1 bolt each, the dog was straight at it, the bitch took a bit of perseverance to get going but both doing good now, hopefully get 1 or 2 more in for them both before we finish.