I´m new to subliminals and have listened to Regeneration and Elixir for about a month.
It started with me bying Regeneration which gave me a splitting headache after listening to it for 3 hours straight.
The headache lasted for 2 days and I swore over the incompetent producers that created such crap!
Then I went online to see what people wrote on the forum that was connected to the shop.
After I corrected my listening schedule and added Elixir all has been well. Really well actually!
I listen to 4 loops of the main sub and 2 loops of Ultima everydag. I try to space out the loops as much as possible.
I built my listening around my work schedule, so I now listen for 3 days then one day of, repeat.