Sampling Evolving Sound - Speed problem - multiple zone tip

Hi all,

in order to use them in Logic X, I need to sample some VST sound working only in 32 bit (for example coming from sylenth1).

I don't need to sample all the library, but just a few sounds that I'm using also on stage (with mainstage).

Some of them are evolving pad, that evolves in around 4 bars.

What normally I'm doing is to play 4 bars of that sound in logic, and record an audio track via bus.

Once I created a sample track (convert region into new sample track), into exs24 in edit mode, if I flag the pitch, the speed of the evolving pad is changing, so is not as was at the original.

I have to record 4 bars of each note that I need to use live, and then create a multi zone for each note (see file attached).

I wonder if some of you got some better and faster idea in order to sample evolving pad without using multi zone

Any advice will be appreciate