Agreed.
Test this gap with the engine off. You should be able to apply FULL brakes and this gap will stay opened and never shut close.
Anything else you will need to check the other needles.
I recommend that you tune in this order once the gap is set properly.
Tune your HSN ( High Speed Needle ) its the one in your pic that is verticle. Get the the best top speed without any stuttering due to being too lean or rich. Then move to the LSN ( Low Speed Needle ) and adjust for the best accelleration. Once attained, you may need to adjust your Idle so it doesn't idle too high.
This advice is given with a basis that your ride is at operating temperature.