From your discussion post in 'Overloaded Trains' by ptx0, it sounds like you're resurrecting your optimized implementation of this mod; however, the description still says "DEPRECATED use [...] instead."
The post reads as though you're a bit frustrated with the lack of response on the other mod, so, apologies if I'm salting the wound. Always pleased with your code though, so hoping you're picking this one up again.