Why Discontinued Tail Pulley of 16Teeth?

hornet

To the Align boss

My I ask why discontinued tail pulley of 16Teeth? The old XL uses the smaller tail pulley and bigger lower main gear in order to produce 4.5x (or it is 5x) the tail RPM 4.5:1 or 5:1.
The current SE/SE2 uses tail pulley + lower main gear to produce tail RPM ratio of 4.2:1

By using the 4.2:1, the TRex need to spin the higher main Rotor RPM in order to achieve good tail authority. In 3D flyer, it is ok...in leisure and scale flyer, it is not good....especially on multibladed head. In multibladed head, it is better to spin in lower RPM in order to achieve good control but lowering RPM will have poor (or not tail authority) if using the 4.2:1 ratio.

So, I would like to ask Align boss to seriously consider putting the 5:1 gear ratio back.

Thanks

SH