I prefer to answer questions relating to the Miata since this has been my area of specific expertise since 1991. I can answer questions relating to the other Mazda models however some limitation of expertise may reduce my accuracy.
Mazda technician since 1987, shop owner and specialty are regarding the Miata since 1991 covering mechanical, electrical, trim and body. Specializing specifically in drivability concerns.
GKHS 1985, BVC 1987, MNA 1989, ASE Master Technician Mechanical 1995, ASE Master Body/Paint/Collision 1996