Thanks for the update!
Number 2 is the 'biggie' as even a tiny hole causes a considerable reduction in a vented cab's ability to load properly, often to the point where the speaker almost completely unloads below its baffle step point, so with a driver that historically has a measured Fs >100 Hz, its dipole action with any leaks dooms it to being a wide BW tweeter.
BTW, its bipole, not dipole, alignment is what helps reduce/eliminate the need for BSC.
GM
Number 2 is the 'biggie' as even a tiny hole causes a considerable reduction in a vented cab's ability to load properly, often to the point where the speaker almost completely unloads below its baffle step point, so with a driver that historically has a measured Fs >100 Hz, its dipole action with any leaks dooms it to being a wide BW tweeter.
BTW, its bipole, not dipole, alignment is what helps reduce/eliminate the need for BSC.
GM