Except you go off drive light, and not hearing/timing.
My model 2 is strange...I couldn't get it to swap for nothing...and believe me I tried every way I could find. And, the model 2 is supposed to be "almost always" round buttons and 32 pin BIOS. Mine is round and 64 pin. I don't know if that has anything to do with the hard swaps, but as easy as the modchip was to install, I feel like I should slap Saturn swappers in the back of the head.
It really takes longer to learn to swap than it does to install the chip.