I usually try to stay out of these sort of things, but I have to comment.
I've been working on 8 tracks since the '70s, and I have yet to feel the need for tweezers. For cassettes, perhaps, but NOT the good ol' endless loop. A good flat blade, perhaps a Philips, some finger dexterity, and determination are all that's required. That, and the necessary repair items: splicing tape, adhesive foil, and replacement pads - not much more than you'd need for R2R tape.
Some carts are a hassle to open, but the great bulk will yield to opening relatively easily. Sorry, I just have to defend the beloved endless loop!
And BTW, the most common cause for tape gobbling is the same for 8T, cassette or reel: dirty capstan. Just sayin'.
Cheers,
Larry B.