Hovis's dream Burls Ti custom track

differentiator (carbon road vs track) would be fork rake (e.g. 40-45mm odd compared to 30-38mm odd). So as long as Hovis has Burls design for that in mind, no real difference from a handling perspective?

10mm difference in offset makes no meaningful difference in handling either, you might detect it jumping from one bike to another but after an hour you wouldn't know which one you were on. Most modern track frames sold with 30mm offset track forks will work perfectly well with 43mm offset road forks.