Hawk, in answer to your worries.....I tarvelled using a visa in April this year.
Like you, I was worried that having a visa would make me look like Ronnie Biggs.
The CPB official didn't bat an eyelid when he saw my visa form.
He asked the whole family 3 questions:
purpose of our visit, how long we were staying, and if we had any food in our bags.
As Dzug said, ypu've answered all the questions already on your visa app.
Yes, the CPB could refuse you entry, but on a family trip, with return tickets booked, it's extremely unlikely, and you'd have a little chat with a 2nd official before that happened.
Relax.
I was Very nervous.
2 mins in front of the CPB, and that was all. It will be fine.