Jeffers has had my vanguard plus 5 pup shots on back order so I gave 2 pups each 2 rounds of solo jecs that the feed store had. Jeffers will have my good shots here tomorrow so I will give them for the 3rd shots but should I give an extra shot with the vanguard since the solojecs are not very good quality? Just want to make sure they get the best immunity possible. Thanks for any help.