The advantage of making a mixed membrane simulation

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GROMACS version: 2022.03
GROMACS modification: No
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Dear experts.

I really try hard to simulate phosphatidylglycerol membrane. I spend many times finding sources and reading papers.
But I still cannot understand. Why are many phosphatidylglycerol membrane simulation files constructed as the heterochiral membrane (L-lipid, D-lipid mixed) model?
(SoftSimu - Downloadables: Software, parameters)
(Untitled Document)
(Lipidbook Package: GROMOS-CKP Gromacs 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol by Piggot TJ et al.)

Most natural membranes are L-lipid homochiral membranes.
Are there specific benefits to system stabilization or computational acceleration of the heterochiral membrane simulation?

Thanks for you time and attention!

2

It’s done to compare to experimental data of PG membranes that are usually a mix.