Yeah I figured it was probably just incompatible but I was hoping=). I tried the plugin above and below the yanfly equipment ones and no luck. I normally keep the optimize plugin near the bottom of the order, I am kind of wondering if it should be higher on the list now.
I use Yanfly equip core, this plugin is well bellow it. For the classes you have to have the dual wield tag and then something like
<Equip Slot: 1, 1, 3, > a shield slot would look like
<Equip Slot: 1, 2, 3,> or <Equip Slot: 1, 1, 2, 3,>. Not sure which but I tried both. If I use <Equip Slot: 1, 3, > then the second dual wield slot can accept either weapons or the buckler which is armor. If I use any of the other tags The 2nd and 3rd slots are both armor only.
Is it meant to be that you can't dual wield two weapons and a shield? If so I was just understanding it wrong and <Equip Slot: 1, 3, > works as intended.
And yeah with the optimize on class change issue, in the normal equip window you can only select the correct weapon types and optimize works properly from that window, just not from the class change window.