Developing Defensive drive
A little back story first,
Grim is 5 months old on the 3rd and we went to our second Schutzhund club meet yesterday. This was his first day however being introduced to the helper and a jute sleeve (not being worn but just presented). With that said Grim was a little aprehensive at first when we were seeing what his defensive drive was. He started to get the hang of it with a little coaxing and the realization that he was being encouraged to bark.
My question is what are ways to help develop Grim's defensive drive? Grim seems to have the early stages prey drive down. The helper and TD both said he did good, but they wanted to see Grim grab the sleeve when it was on the ground and vocal a little earlier.
We don't have a harness yet and I think that when maybe that harness vs his flat collar would be better as far as equipment goes. Any other suggestions would be appretiated.