I've been hitting teespring hard for the past 6 months ish. Was a total newb to this way of running facebook, because running cloaked diet/skin is totally different from actually running legit, white hat where you have to find the audience, and optimize headlines, ads, and a lot of little segments to get things to work so you can profit off $10 per shirt CPA's at scale.
I think I've figured teespring out real well, thanks to my systematical approach to things - something I can attribute a lot of my success to over the years in profits.
So how do you scale from $xxx per day to $xxxx on Facebook running teespring?
The answer lies in your niche, if you find a passionate niche, rather than going to hunt and find more passionate niches and waste time.
You have the option to scale by either adding more adsets (one per interest) based on affinity, or you can listen and engage your audience and give them every single they they ask for.
We did just that, I hired a team for IG & FB to update the fan pages for the niches every single day, 3-24 times per day using various ways. This is how I had that crazy day when in one day I got over 10,000 likes and over 1 million reach to one of our updates. (If you follow me on FB you've seen the screenshots).
Well, what these guys also tell you is what they'd rather buy, or what they want. Give it to them, and sell to the same market, and you will be able to jump to xxxx$ in 48 hours (you do need 1 day to optimize) real fast.
That's it for this quick iAmAttila lesson 
Good luck!
Hi Attila!
I'm following you in FB but I can't find the screenshots... Am I doing something wrong?
I am interested too , gonna work on it these days after I set up the diet campaign , you got a nice blog tho :-) and thx for all your ppc tools!!!
Pure gold! Your posts are always sweet and to-the-point - something I could REALLY learn from! 
Amy
great post Attila!
a quick question: is Teespring what you would do if you were starting over again and didn't want to cloak?
Hi Attila,
are you still talking about Teespring here or is that a VIRAL monetization page ala viralnova
?
Cheers
Attila.....would like to hear your answer to the questions thanks!
White-hat for the win!
Great points.