Sadly this didn't work for me.
Before, my Throttle_axis_1 idle point was -0.414307, which I've now changed to add the extra .05 to 0.464307. The same goes for throttle_axis_2, which before was 0.454419 to which I've now changed to -0.454419.
It leaves my throttle in half the reverse detent. - I have to have my throttle at the CLB position (I use the TM Airbus Throttle Quad) to keep myself at idle.