A little observation from a newcomer... It seemed a bit weird to have two classes of cars with that small number of racers. Otherwise I liked the event, nicely done within current limitations of LFS. Guess I'll be there next time also.
Not latest test patch but maybe helpful... LFS 0.5V2, windowed (at the moment of crash it was hidden under other windows), shift+U mode, connected to LFS director, playing replay of race on FE4R. Crash address: 0x00000000004aa9b2.
I understand that all this smoothness in those games is kinda fake - cars are driven by AI with occasional correction from players driving, so to say. Is this superior? Don't think so. That doesn't mean that prediction could not be improved in LFS.
But yes replays would be easy to smoothen, as there program already knows next position.
BTW, one thing I noticed about V3. If race is over, and just doing laps (starting after finish), now if you complete same number of laps as race was, it will display FINISHED. Didn't happen before.
Didn't dig too deep into problem, but my guess is that this test works because both computers (or is it same computer even?) are behind that router. From outside world you probably can't connect, so something wrong with port forwarding.
I tried changing IP of master server in lfs.exe (0.3H), and it doesn't work. Looks like new master rejects any older versions now. So I guess S1 is sort of abandonware already?
Could use "LFSW: " instead - saves one valuable character.
But anyway, "LFSW: 123456789012345678901234 drove new PB X:XX.XX (-XX.XX)" would fit no problem, 60 characters max.
And one more question about LFSW messages: why isn't first lap with this track/car message public like PB message is? I guess at least half of times people let others know of that anyway (T - up arrow - Enter).
BTW, when displaying message about PB, why not also show what previous PB was? And as it comes from computer anyway, also why not compute and show difference.
Something like this: somebody drove new pb: X:XX.XX (previous X:XX.XX improvement X.XX).