Second American Medium Tank Line Proposal

I think there should be a second medium line for the US. Too many American premium mediums, but only one true medium line. The T57 line is a heavy line. I am proposing a tank line that is lighter and more mobile compared to the Patton line. It can either branch off at Tier 8 or Tier 9, much like the Soviet medium lines branch. Here are the tanks I propose.

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Tier VIII: T23 Medium Tank

The original tier 8 american medium from beta testing. Research from the T20. It plays like a T20, but with slightly better armor and top gun. Distinct from the Pershing because it has much better mobility. Same model from beta, but better overall characteristics and armor.

Tier IX: T42 Medium Tank

Tank which the M47 Patton's (M46 top) turret was designed for. Shares hull of T69 Medium, but has better mobility than both the M46 Patton and T54E1. Has pre-buff M46 Patton top turret as top turret. Research from T23 or from T69.

Tier X: T87 Medium Tank

Improved version of the T42 Medium. Has better hull armor and similar mobility. Has post-buff top M46 Patton turret. Better accuracy than M48 Patton, with slightly worse gun handling.

Overall

This line should compare to the Patton line how the Leopard line compares to the E50 line. Less armor, more speed and accuracy. Whereas the M46 KR would be the tier 8 premium counterpart to the Patton line, the T1-LPC would be the premium counterpart to the T87 line.

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Does anyone have any overall thoughts on this idea?