Topic: Primary ingredient

Hello!
If I understand how morphing works, there are two kinds of internal model parameters:
- those that cannot be interpolated between "ingredients"
- those that are interpolated

And the first kind of parameters are picked from the "ingredient" with largest weight.
Is there an option to limit which of the ingredients can be used as such a primary?
If no, would it be possible to ask for such a checkbox per ingredient?

Currently, if I want a piano that is morphed 66% towards glockenspiel (say), I need to have:
- piano, 34% weight
- glockenspiel, 33% weight
- another glockenspiel, 33% weight

It sounds completely different to:
- piano, 34% weight
- glockenspiel, 66% weight

Re: Primary ingredient

I seem to have figured it out, but I am not sure, because the documentation on this topic is very sparse.
It seems I can morph selected instrument >50% towards another if I select the following in the "freeze" menu:
- Instrument
- Effects
- Output settings / Mic settings

Anything less and I am getting ugly dropouts and timbre jumps when crossing 50% point.
Anyone has any useful hints for using morphing feature so that the instrument can be smoothly modulated ?