Zebra Fm input versus osc output

[gentleclockdivider]

As you can see there are two methods available , first one is to modulate the fm input and keep the modulators output , and second method keep the carrier fm index but instead modulate the modulators output .
I prefer the second method because this is the closest how the dx synths behave , because operators didn't have an fm input index amount , the amount was modulated by the operators output
Reason why I am posting is because there is still a slight difference in how the modulation behaves .
When trying to match the levels between the 2 examples , method 2 somehow feels a bit slower
Is this because of the volume scaling of the output ( osc 1 , method 2 ) , versus scaling of the fm input ?

[gentleclockdivider]

Maybe one of the developers can chime in ?

[Howard]

Interesting - different curves! Yep, FM amount modulation is better for typical DX sounds.

[gentleclockdivider]

Well that is the problem , I also believe ,hear that modulating the fm amount is better ( due to curves )
But when you route 2 or 3 parallel modulators into one carrier , it's a lot easier to modulate the modulators output (individually) and keep the fm amount (on the carrier) at a fixed position .
This could even be set to max , since the fm amount is defined by the modulators volume automation , but the resulting sound is different because of the volume scaling .
This is how the dx does it , it is the gain output of the operators that defined the FM amount .
There was no such thing as fm input amount on the dx series , or rather the fm input was always fixed , hence that's why I prefer method 2
I hope this will get an update for zebra 3

[Howard]

Easy solution in Zebra2: Use more curvy envelopes.