Oh right, I see your logic now and why you say more stress.
For sure, as the screws bend, they will absorb some force. However the screws don't bend too much, and even so they do not break. A breakage releases loads of energy.
The small bend will absorb maybe 2-5% of the impact energy, the rest has to travel through the transmission housing as stress and strain. And once they are bent, the extend to which they can bend further is limited so the transmission housing then takes 100% of the impact.
So I think this mod adds no extra stress really, and saves hassle of bent screws. I will test it out next weekend at the MK GP, that track will no doubt test their strength. Nice and easy to do too, you only need two drill bits and a M4 tap
