MSilvia
Contributor
There isn't any information about your diving in your profile, so I may be way off base here, but I'm assuming that since you don't seem to have much experience fitting a backplate, you aren't planning to do a technical dive right away. If that's true, is there another BC you could use? If you have an old jacket style or back inflate BC or are able to rent one, I'd go that route for your trip rather than use a backplate that you know isn't fitting you properly.