Good proxies (we can't recommend you anything for this in the guide, as the sites change a lot constantly - pick your proxies based on your own experience or try asking others in the chat)
Usage
First of all make sure you setup all your Chrome users with a fully configured Pepper instance. This means:
1) Create a new Chrome Profile (no guest)
2) Load Pepper inside the new Profile from the same folder you used to setup your first Chrome instance
3) Import Pepper Settings from your other Chrome instance and setup the webhook etc.
4) Check if everything is working by doing some test checkouts!