Re: Re: F70 SL process

When I'm not picking up anything in disc mode and I use disc very sparingly, it's usually set at disc 4, and runs well at sens 85, thresh -3.I switch to SL mode and it does pick up targets that gave no indication whatsoever in disc mode.I don't even have to have the sens high, usually 65 sens, and still -3 thresh.But on the wet it pays to lower the sens drastically to around 30 sens,and bump up the thresh to around +6.Yes we get good depth all round in SL mode. (beaches only)Mostly dry  and damp wet salt occasionally on the wet.
  OK! Fill me in What is SL mode