To be able to correlate the output-test results to the setting, it would probably behoove me to use voltage mode rather than wattage; I just don't know what voltage to set it at, I'm so accustomed to setting wattage for my preferred vape.Andria
For a given resistance coil at a given wattage, your output voltage should be the same. So if you're using a 1.8 ohm coil at 9.5 watts RMS, the output voltage should always be 4.1 volts RMS, regardless of what device you're using (depending on how accurate the device is and if it's working properly obviously). Since you couldn't seem to get the same vape on the Vamo at 9.5 watts as you were with the Sigelei, what I was suggesting is that you put that same 1.8 ohm coil on the Omnitester with the Vamo and adjust the Vamo's power (or voltage) until the Omnitester reads 4.1 volts (or as close as possible). That should give you the closest 9.5 watt vape on the Vamo as you're getting on the Sigelei.
For a
1.8 ohm coil, the RMS 'voltage to wattage' conversion would be the following:
3.79 volts = 8 watts
3.91 volts = 8.5 watts
4.02 volts = 9 watts
4.14 volts = 9.5 watts
4.24 volts = 10 watts
4.35 volts = 10.5 watts
(I won't bother listing them all since you seem to prefer vaping somewhere in this range...)
So using your Omnitester to monitor the Vamo's output voltage while you make voltage or power setting changes should allow you to tweak your Vamo's output to a specific wattage based on the voltage you see on the Omnitester. It's a shame your Vamo's output doesn't seem to be correct, but you should be able to use this method to compensate for output error so that you can continue to use the Vamo if you want to.
Note: Remember that your Omnitester will 'round up' or 'round down' to the nearest tenths decimal place so keep that in mind while making adjustments (ex. 4.14 would be displayed as 4.1 and 4.17 would be displayed as 4.2).