unfortunately if you are having trouble hitting the first squeeze then, you said it yourself, you arent getting the full whammy out of the sustains. I know this is what you have been trying to do but make sure you whammy as early as possible and do not let go of the hold note until you are sure that the hold is over. If you cannot get all of the whammy then im not sure what else is going to help you... just squeeze even later? a possiblity.
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like if you take an orange and jab forks into either side, it's not an orange any more....it's some kind of cyborg fruit
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