If you ever worked in satellite systems you would know how delicate an orbital trajectory is.
Satellites actually need to be continually controlled to maintain an orbit.
Any orbit is a temporary state of equilibrium, just like any physical trajectory, including Earth temperature, plotted against time..
Equilibrium means forces are balanced.
Upset the balance and the orbit and/or trajectory is broken.
In the case of Geoengineering, we would be creating an imbalance by increasing solar pressure. Since that pressure is outwards, we would break out of orbit, outwards. Our path then would follow an increasing spiral, straightening in a short time, only a few years, to something that resembles a tangent, following a straight line, away from the sun.
We wouldn't get two chances to confirm that by experiment, only one.
I could show you this by a model, or by using the satellite orbital trajectory software that I wrote many years ago, incorporating the SGP algorithm of Dr TS Kelso, working in consultation with him. But I hope you understand, I get tired of having to always prove things to skeptics, so on this occasion, if you don't believe me, que sera.