i've got my Sub psw10, how I should install it?

I have a Yamaha HTR-5170 with "subwoofer line out" but there is no "LFE" :( for the subwoofer,

Is it OK if I use Polk "hook up option 1" from it's manual?

My reciver optins are:
1- "SW" for using Sub for LF or;
2- "Both" which means using "SW" and "main" or;
3- "Main" when there is no "SW" hooked up.

Plus my center speakers are as larg as my main speakers.

Thanks :)