Weight Loss Expectations

I am in process, after receiving a valid weight on our little guy of 15lbs, of changing their diet and of course upping exercise, play time etc.

I guess the "good" news is that since 9/8/2014 Monty has not gained any weight.  He is still at 15.2.   Si, however, has gained 4oz.  I don't necessarily think that Si's minor weight gain is an issue as he is way more active since manipulating the food choices than he was before.  I think his is actually muscle gain in lieu of fat.

I guess I had hoped that Monty might lose an ounce or two in a few weeks span.  Is that realistic?  Or does his metabolism need to catch up & reverse itself?

The foods below are what I'm currently rotating (feeding 4 small wet meals of 1-1.5oz) and they each continue to get their 2x/day dry kibble and that totals 1/4cup each.   Sometimes they will only eat 7-10 pieces and when they walk away, I throw the rest in the trash.    I continue to try to substitute another very small wet meal in place of the kibble; however, sometimes they aren't buying that trick

                                               Protein      Fat      Carbs            Calories                                               Calories per 1/2 Can
Based on their old rotation of foods, they were both in the 350-450 calories per day each.  The spreadsheet I made and am now tracking daily feedings, we are between 214 and a couple of times (based on their howling at the cabinet doors) up to 315 calories.

I have cut the kibble waaaaay back in comparison.  And I am feeding them their kibble portions in separate rooms as Monty was vaccuming up Si's leftovers which is/was my fault.

All pointers and ideas welcome!   Just trying to see if I am on the right track.

I would cut their dry food back to "snack size" and feed them only about 1/8 C, especially since they aren't eating as much or any of it at all.  I use dry kibble for treats, too.  Regular treats are high in calories.  You don't want them to drop weight too quickly as that can cause other problems, but slow and steady weight loss is good.  If they drop a pound over the course of a year, that would be fine.