I wouldn't, what happens if the gas spring faults (resulting in a dry fire and potentially flying shrapnel)? Also, there would be no benefit as you will not see a grouping and other inconsistencies in your actual shots, kinda makes the whole process a farce.
At least with a target in your garage, kitchen or living room you can see your grouping and hear differences in your bow shooting as you normally would, even if it is only 3-5 yards away.
At least with a target in your garage, kitchen or living room you can see your grouping and hear differences in your bow shooting as you normally would, even if it is only 3-5 yards away.