Webench/TPS54334: TPS55334 schematic issue

Part Number:TPS54334

Tool/software: Webench

Hello,

I have several questions with drawing schematic with TI's TPS54334DDA.

1.     Reference schematic of EVM user guide and WEBENCH Designer  schematic is different as attached. which one do I follow?
2.     Can you recommand another schematic for Vin 24V / Vout 12V / Iout 3A besides above two?
3.     Is there any other TI device that 12V/3A fixed output?
4.     Please explain the Vstart and Vstop at Equation 2,3 of 1.3.2 Adjustable UVLO’ from page 3 of attached ‘TPS54334_evm.pdf’ file.
5.     When I apply the above equation 2,3 to EVM schematic, then R1 , R2 value is differenent.
-       If Vstart = 4.1V, Vstop = 3.23V, then R1=220k, R2=124.9k

Attached
1.     Comparison between EVM Reference sch and WEBENCH Designer sch(DSN).

2.     Comparison between EVM Reference sch and WEBENCH Designer sch(PDF).

(Please visit the site to view this file)
3.     TPS54334_evm.pdf.

(Please visit the site to view this file)
4.     TPS54334 Webench schematic.

Thanks,

TS