I actually did just now for the sake of experiment and recollection the following to a 901 that has been in almost daily use for 2-3 months now:
- Blew it dry
- A baking soda/vinegar wash
- 15 min in ultrasonic
- Blew it dry
- 12 drops of VG
These Magnums just keep getting better, the air flow is better than in a new one, loser and easier and it holds more 100%VG juice, I can trip 4-5 drops as normally its 2-3. Now after the maintenance I can use it at a little bit lower voltage and get the great flavor of 901 and still the vapor is better than before maintenance at higher voltage.
I my self just keep learning about these great attys all the time.
Can you tell us how often you go through your cleaning procedure.