iflyforpie wrote: It will still be slightly inaccurate. The inaccuracy in this case comes from horizontal position error of the pitot tube, similar to the vertical position error we are all familiar with being the difference between Calibrated and Indicated airspeeds.

But if you hold attitude or even just fly with a light touch (not the easiest thing to do when flying a forced), the aircraft will remain at a safe airspeed.