I typically don't use or recommend a prong or e-collar on dogs younger than 6-7 months. I like a harness and long line on puppies for most activities. I use a slip leash for some up close training stuff but most of my training before 6-7 months is just shaping/capturing behaviors through rewards and socialization to life with us.
When a dog saves the life of a man, it becomes clear that partnership knows no bounds.
Fama - T.E.D.D. OEF XI-XII (GSD)(RIP)
Marshall - T.E.D.D. OEF XII-XIII (Lab)(SF EDD)
Lucian - Med Alert / Mobility SD (Cane Corso)
Pud - the old man (Pit x Lab)
Hank - DW Dog (Cane Corso)