That is what I had been trying to achieve, then I gave up.
It is possible theoretically if you know where to land your ball with the full understanding of all the contours, slopes, characteristics of every single green featured in this game. Otherwise, it becomes virtually a mission impossible 'cause as we all know, the faster the greens, the harder it becomes to make the rock (the free ball) bite the surface preventing any unwanted roll away from the pin. Based on my personal experience, one can deal and submit decent scores* up to legend tier with the freebies but anything beyond that point, I'd say you're being too ambitious. (It really depends on each individual but for me, anything lower than 59 is a decent score. Again, each of your own...)
Another downside of it is the distance. You will notice with the freebie some holes cannot be covered (reached) within the GIR number even with a tailwind which can be very frustrating and devastating psychologically.
This is my two cents on it... Happy hitting and good luck.