It's a Rovner, Rob, the cutout bit denotes it as bright, I think, as opposed to dark, which hasn't got the cutout. Since mucking about a fair bit with ligs when I was upgrading from my first basic mpc I sort of concluded that the ligature didn't make that much difference to the sound, or that the differences between ligatures could be reproduced by changing embouchure, as that and the mpc have a greater effect than the bit of metal or leathery stuff that holds the reed in place.
I know there are varying opinions on how much difference a ligature can make, but I think it might be time for a little experiment with what I have, as I am now able to control and modulate my embouchure better. If only to help me decide for myself, rather than tell you whether you're right or wrong, which as a relative novice, and self-taught also, I wouldn;t dare to do.
So, what do I need to do? Presumably, use the same sax, mouthpiece and reed, and position of the reed on the mouthpiece, and try and detect differences with alternate ligs. I have a few to play around with - the basic metal with two screws, a couple of Rovner brights (one with a gold screw, one with steel, I know some people will say such things make a difference), a Rovner dark, a big fat BG with rubbery stuff against the reed, and one of those gold-coloured metal Vandoren ligs with the three interchangeable clip-on plates.
FWIW, I always use the Rovner brights, purely because I find them easy to use (only one screw, too).
Cheers, Bob