The Lincoln 3270-X 2 I another example of trying to take a basically flawed design and make a good oven out of it. Usually that does not work.
The oven in question is a knock off of the E-Flow oven originally designed by the manufactures of the XLT ovens. Those folks wisely gave up on the design and sold it to an engineering firm that thought they could perfect the design. They tried but failed and then sold the design to Lincoln. Apparently they have or will soon discontinue production of the 3270-X 2.
Old saying " You cant make a silk purse out of a pigs ear"