t=flat-hook-short-neck* neck length depends on weight

[pv4]

When building t=flat-hook-short-neck or t=flat-hook-short-neck2:

1. t has different neck heights depending on the weight. heavy has the longest neck, thin has the shortest one (marked with dots on the first image attached: thin and heavy of flat-hook-short-neck2).
2. the "visual height" differs even more (I guess it's somehow related to stem thickness). Look at "thread" and "sorted" on the second image: regular and bold (unsure) and t=flat-hook-short-neck.

Are these an intended behavior?

[be5invis]

Well to achieve visual alignment, the height of the top need, actually, sligntly lower when getting bolder. Anyway, this will get updated in v6.1.0.
Closing as Resolved.