If I had to guess.. I'd say it added a solid 3/4 of an inch to an inch for me.. I was just over 7" when I started years ago... now its a touch under 8".. i started in my mid 20s.. so I don't think I was still naturally "growing."
If I had to guess.. I'd say it added a solid 3/4 of an inch to an inch for me.. I was just over 7" when I started years ago... now its a touch under 8".. i started in my mid 20s.. so I don't think I was still naturally "growing."