James, Peter, Dumbledore, Secret-Keeper

[Katze]

No: HPFGUIDX 34083

I was pondering something earlier today, and I've started to think that
perhaps James didn't trust Peter 100%. Why? We know that Sirius
convinced James to go with Peter, but he wasn't the first choice. James
also left his invisibility cloak in the care of Dumbledore, along with
Harry's key to the Gringott's vault. So I wonder if James already knew
that Peter was up to no good? He couldn't have known anything factual,
because he still chose Peter as the Secret-Keeper. 

But why would James leave his belongings in D's care, and yet choose
another for the Secret-Keeper? Is this even a valid consideration?

-Katze