Hahah. I do not necessarily want to assume this, but TAKARA-TOMY probably decided that H145 was going to be the "reinforced" version because too many Tracks were not produced correctly. They even changed the picture on the official website, if people had not noticed :
[Image: track_h145_img.jpg]
I also saw boxes on Yahoo! Japan Auctions where the designers had really edited the pictures to show the "reinforced" Track and everything was written in Japanese. So, this is our new H145, hah. It is currently the heaviest Track since it weighs 4.3 grams, 0.3 grams heavier than the normal model.