There is no determined amount which would cause LE to execute a controlled delivery. They get a limited number of deliveries they can do a month and would rather take packages with a lot more content in them than 100g. Controlled deliveries are costly and takes a lot of resource. The chance of your 100g package making that cut is slim to none. Expect a love letter, if anything.
You can't possibly fathom the amount of incoming packages that flow in the US everyday, dogs aren't trained to sniff out hormonal powders. So unless your source makes your package obvious your package will get to you. Somehow my source gets my pack. To me in 4 days . Beats the domestic guys to my door