slickrick, multiple caliper? are we talking dual disks? Like dual rotors and calipers? If so, I have always preferred dual disk, I like the stopping power, but that’s not so say you cant get good stopping power from an single disk.
The quality of your rotor and caliper can make or brake you.
Its not a must do situation, that is why its called an upgrade.
Depending on how fast you like to go and whether or not you REALLY want to be able to stop, then good quality brakes should be on your 'need to get list'.
If your Joe average with Joe average horsepower, then there is not a real need to upgrade until you wear-out what you got. $$$
If on the other hand, you are somewhat like me, and you suffer from moments of wrist-twistism?, (wfo), then an upgrade is in store for you.
I personally would skip the new take-offs, brake parts are not that expensive, for $100 or so more than you would pay for the new take-offs, you can set your self up with some real stopping power.
Sorry about being long winded, I’m still amped from some serious wrist-twistism this afternoon.
Hope this helps.