I used to train dogs, but always one on one, and never had to deal with two at a time.

NOW I have mama's lap dog (16 lb terrier) and a 4 month old Brittany that went from started at 13lbs (9 weeks) and hit 25 lbs a Month later...

The mistake I made - TOP DOG...

The Brit was the biggest dog in the litter so he was alpha... But guess who momma and even dad pets first... Little scampy.

Lesson learned, if you treat the little guy as the alpha, the bigger dog not getting his place in life will take it out on the little guy the second he gets a chance to remind him whos bigger.

So recognize the bigger dog, and life gets easier fast... Human nature says nurture the little guy.. But if you do it things in the pack will not be well.