I just tried it, but it didn't work. No idea what's wrong, because I am sure it did work when I applied the patch.
Workaround: Save your preferred layout as "Startup Layout".
Edit: It does work, but only if the "Your path is too long, do you want me to add even more to it dialog" is not being shown.
The IDE first show its startup layout and then switches to the one configured in GExperts. There seems to be no way to avoid this temporary startup layout (apart from overwriting the Startup Layout as suggested above).