I had those last month feedbacks from M2000 pilots and showed them BMS ... had also confirmation by F-16 and Rafale pilots.
In BMS with a non tired pilot (no prior long high-G set-up):
Under 9G you have about 30s time of consciousness.
Under 8G you have about 50s time of consciousness.
Under 7G you have about 70s time of consciousness.
... according to all of them, nothing particularity weird nor unusual.
G-Model in BMS is not different than an RL pilot in good health, trained and performing AGSM and equipped with a G-suite.
Conclusion: No issues in BMS on this side, will keep this model for future version.