Like @yonny I do not like using backleads, for the reasons he states.
If you add a backlead, you add an extra angle, and angles reduce indication.
I will only use them if there are boats on the water I'm fishing, where I need to get the line below the boat hulls or engine.
When I do need to use them, it is the Gardner Tackle Captive Back lead for me.
The majority of the time I can get the line running along the lakebed by sinking my rod tips below the surface. That is on reservoirs and lakes.
Add in any distance above 40metres and the line runs along the lakebed anyway, unless there are features like gravel bars between your rod tips and the end tackle.