Which Type of Proxy Should I Set In SER When Using GSA Proxy Scraper As Proxy Server & Port Scanner?

OK. Let's say I have SER set to have 127.0.0.1:8080, thus using GSA-PS as a proxy server.

I've read that it doesn't matter which type of proxy SER is set for. I notice when I test this to see if it's communicating with PS, SER willb e set with whatever proxy type the last accessed proxy is.

I asked a bit ago, can't seem to find the thread, re. what is best setting.  I thought was Connect but I'm not sure...??

Also, when using Proxy for Port Scanning, I can also choose the type. The default is Connect. When should this be a SOCKS proxy?

Thanks...!