Porkchop wrote:
... but I now worry more about leaks.

It's a fine line between "loose", "snug", "tight", & "overtight". It's a matter of trial and error in order to find what works for you, your body type, and the diaper you are using. And for those moments when I want "extra-assurance", then a water-proof diaper will do; for example, a Gary PUL cover.
In time, you'll find the right combination, method, product, etc. Hang in there!
And if you haven't read it, read both the
diaper primer and
JD's White Paper. They both have sections on positioning, tightening, covers, etc.
I am slowly working my way through the primer on this site, then I will tackle JDs. Thanks for reminding me to get on that!