Is it really that easy to down size and up size 3rd party TF toys?

I don't think it is.
Think if it was so easy and not costly. Think HasTak and 3rd parties would be doing it all the time.
Noticed the Legends, basics and deluxes use more ball joints. While the bigger toys use more ratchet joints.
Also noticed the smaller toys use less parts and are more compact.
The plastic on the bigger toys seem thicker.
Think the process is harder and more costly than some realize. As parts need to be recast. measurements need to be redone and altered. joints tech might need to get changed from ball joints to ratchet joints or vice versa. plastic might need to be made thicker or less depending on different desired size. Think the cost of all of this might cost so much it might not make sense to do any of it. as you might as well just create a new mold toy instead.
Think if it was so easy and not costly. Think HasTak and 3rd parties would be doing it all the time.
Noticed the Legends, basics and deluxes use more ball joints. While the bigger toys use more ratchet joints.
Also noticed the smaller toys use less parts and are more compact.
The plastic on the bigger toys seem thicker.
Think the process is harder and more costly than some realize. As parts need to be recast. measurements need to be redone and altered. joints tech might need to get changed from ball joints to ratchet joints or vice versa. plastic might need to be made thicker or less depending on different desired size. Think the cost of all of this might cost so much it might not make sense to do any of it. as you might as well just create a new mold toy instead.