Spring(s) would not help.
The angle is wrong from the factory.
The kickstand does not go out much past vertical. So add in the slack of 1st gear(if it's even put in gear), and it takes no effort for the Busa to fall.
I learned to leave the Busa in 1st, roll it forward to get the slack out, turn and lock the bars, and make sure it couldn't roll before stepping away.
The kickstand mod (when done correctly)allows the kickstand to swing forward enough to where it cannot fold itself closed.
Honestly, Suzuki needs their azz kicked for not fixing this problem. But, it's only been 19 years, so.
I've owned and ridden countless bikes over the years. Never have I seen such a pitiful design...and on the companies "flagship" bike.