I would run the optics still TBH, even with vents the T32 will lose a dpm fight with anything that can pen it. It's better to use the op turret and view range to get control on those maps that allow it. This playstyle has much more value to the team and will win you way more matches than vents can. To me having 470 or even higher view range on the T32 is the tank's flavor, when it's not top tier, it's a vision control/ support tank. When you are top tier you can shoot the Tier 6s and 7s before they can even see you on some maps which is also fun.