OEM Control Arms: revisions or supersessions

[Razziel24]

Hello, I need to replace both control arms for my 2019 Edge ST, and I came across some vendors online offering the part number but with different revisions: (at different prices)

F2GZ-3078-A, (n/a)
F2GZ-3078-B, (n/a)
F2GZ-3078-C, ($226)
F2GZ-3078-H, ($198)
F2GZ-3078-K ($253)

According to Gemini:

Here's a breakdown:

• F2GZ-3078-K is generally the latest or current part number that supersedes the others. .
  
  
• The suffixes (A, B, C, H, K) indicate engineering revisions or updates to the part. When a manufacturer makes a minor change or improvement to a component, they often issue a new part number with a different suffix. These changes can be:
  • Material improvements: A stronger or lighter material might be used.
  • Design tweaks: Minor changes to the shape or dimensions for better fitment, durability, or performance.
  • Manufacturing process changes: Updates to how the part is produced.
  • Supplier changes: A new supplier might necessitate a slight change in the part number.
  • Inclusion of components: Sometimes a new part number might indicate that additional small components (like a specific bolt or bushing) are now included with the main assembly.

Without access to Ford's internal engineering change notices or technical service bulletins specifically detailing each incremental change, it's impossible to pinpoint the exact differences (e.g., "in 'H' we increased the bushing durometer by X%, and in 'K' we added a different coating to the ball joint pin").

Does anyone know the specific details of the changes Ford made to this revisions ?
Would it be wise to buy the rev H, taking in consideration the price difference ?
Thank you