slooooow!
But 11 months shouldn't be too small, as they are entire.
We were hoping ours would have gone by now (9 months) but they're just not big enough. So they'll be a year old to get them in before Christmas....
14 months has been said on here before to be a good age to go,
but in our case it would be 1) Christmas & therefore busy and 2) the second lot are on their way...