Thanks Rod, it does make sense.

I'll just keep an eye on it and see how it goes. It should be ok, I've entered dimesions for each individual item and after all my shipping charges are cheaper than most of my competitors so I shouldn't get complaints.

It may be good to have 2 AP mods, one for letters and large letters and another for parcels. I am not saying you should do this but maybe in the future it may be a better option.

Have a nice day,
Raquel.