The flexible 15-15.5 instrument opening is big enough to allow me to put a shoulder rest along the bottom so the instrument won't swim around.

This is the best designed case by experts it can be used by baroque violins, with oversize instruments and violas

Tipping over will not harm the instrument; it is just an annoyance- no place built in the case to hold the shoulder rest.

It has protected the instrument well, is light weight and easy to carry, and has handy storage spaces.

It has protected the instrument well, is light weight and easy to carry, and has handy storage spaces.

I have several cheaper instruments that I use for casual

It is well designed, incredibly light and feels as though it will protect the instrument effectively