Evo and Bear 840 Maths.

Hi, can anyone please confim my maths and facts about the following:

Evos are wedged and dewedged. the wedging is +15 degrees at the front and -15 degrees at the back.

2010 Bear 840 trucks can be flipped. Unflipped they are 45 degrees and Flipped they are 35 degrees. That is to say, you get a 10 degree change by flipping them.

Therefore, I have the following options:

Front Flipped, back Flipped = 50 degrees at the front and 20 degrees at the back.

Front Unflipped, back Flipped = 60 degrees at the front and 20 degrees at the back.

Front Flipped, Back Unflipped = 50 degrees at the front and 30 degrees at the back.

Front unflipped, Back Unflipped = 60 degrees at the front and 30 degrees at the back.

I have been riding front flipped, back flipped for downhill. I am about to flip the back, and while it seemed obvious in my maths and current knowledge that it should be ok, I was just looking for feedback about my "facts" and proposed changes before I get it up to speed.

Thankyou.