FSV and Heidenhaim are similar at the moment, but you must understand that they are not allowed to be such a huge underdogs at home. They are oriented on games in Frankfurt and against teams like Heidenhaim they must win.
I will expect odds like 2.00 here, but not so high 2.45 is a great option, there is a really huge chance FSV will win at home, or at least have a better chance so I see a great value here.
bet on this, odds will drop you can even make a cash out, that is advantage of a betting few days forward. FSV has much better chance.