Fail to understand the need for a different hood when the original is so small and works so well
Let me explain: The FE + standard hood make a fabulous walk around combo for the A7. But when you want to put a 49mm polarizing filter on the lens to bring out the clouds and improve texture in morning and late afternoon light, the current hood is useless.
I keep a rubber 49mm lens shade in my bag with a Marumi thin CLP attached. When I want the polarizer, I just pop off the standard hood and screw on the filter/hood combo.
Because the rubber hood is round and large, you can easily adjust the filter for optimum polarization.
Try all that with the standard hood.