So we've figured out that the change in HTA is inversely proportional to the size of the frame/wheelbase. We've also learned that the trail is inversely proportional to increase in offset. Offset has a more direct/greater influence on trail than a change in HTA. So axle to crown changes won't affect the steering much, if at all, as long as the same fork offset is kept, but changing to a larger offset will have a large effect on steering geometry, even if the change in offset is minimal.