Err not quite. G meters are accelerometers and in straight and level flight indicate 1G. As you start pushing they go towards 0G on the scale. Here is a G metre in a Yak 52 sitting on the ground i.e. at 1G.
0.1G would have the needle just above the 0 mark. Anything less than 1 is a negative acceleration.
My typo in previous post (since corrected) that means the G meter would be just above 0G reading 0.1G when the negative G cut starts.