Overall, I think that your PJ clone cheesesticks came out well. However, there are a couple of things that you might want to try next time if you feel that you would like to proceed with this matter.
First, you might reduce the amount of cheese. As you can see from Reply 493 at http://www.pizzamaking.com/forum/index.php/topic,6758.msg260046/topicseen.html#msg260046
, the cheese that PJ uses is not a pure mozzarella cheese such as you used. You actually might get closer to PJ's cheese by using a bagged shredded low moisture, part-skim mozzarella cheese such as sold at retail in supermarkets. As noted below, your baked cheesestick pizza weight was a bit on the high side. Reducing the amount of cheese might help bring the final weight back into balance. And it might also reduce the grease factor.
Second, you might try baking the cheesestick pizza directly on the stone surface of your deck oven until you get the desired bottom crust coloration and then use one or more screens or disks to lift the cheesestick pizza off of the stone surface and try to get the desired top crust/cheese coloration. In my standard electric home oven, I really never got particularly good results baking pizzas on a screen with the screen in direct contact with the stone. I did better by using either the screen or the stone, but not both at the same time.
Third, if you felt that the "butter" flavor was too much, next time you can try reducing the amount of PJ Garlic sauce to 1.50 ounces.
Based on the numbers you posted, I calculated that the weight of the unbaked cheesestick pizza was (14.4 ounces x 28.25) [dough] + 2 (31.62-2.08) [PJ Garlic sauce] + (4 x 28.35) [cheese] = 580.72 grams (20.48 ounces). I believe that you meant the finished cheesestick pizza weight to be 18 ounces (1 pound two ounces) rather than 1.2 pounds, so I used the 510 grams figure as being the more probable value. On that basis, the weight loss during baking was 34 grams (1.20 ounces), or 12.18%. The last cheesestick pizza you made and discussed at Reply 14 at http://www.pizzamaking.com/forum/index.php/topic,25844.msg260886.html#msg260886
sustained a weight loss of about 13%. So, it appears that you are getting fairly consistent numbers out of your deck oven.
For your information, the weight of the contents of the mini-tub of PJ's Garlic sauce is 31.62-2.08 = 29.54 grams, or 1.042 ounces. That is quite close to what is stated on the peel-off label for the PJ Garlic sauce. By any chance, did you try to convert the contents of one of the PJ mini-tubs of Garlic sauce to a volume measurement?