My two cents is - I think that it is a great idea.
I converted a 2x15 tuck and roll Kustom into a 4x10 and I thought it was a great improvement.
I put in four Eminence Basslites with 4" JBL aluminum voice coil dust covers that I added. It would be a good idea to use WinISD to tune the enclosure.
It wouldn't be a "good" idea... i wouldn't do ANYthing else.
__________________
Got a Kramer Question? Ask away! Kramer Club #10 8 Inch Speaker's FTW Club member #2 Official Bc Rich Club #9 Marshall Club #31