I buy BCE in Canada, settle in CAD
then i immediately sell BCE in US market , settle in USD
Both trades cost $9.95
It will show as +X shares and -X shares but wait a few days, and they will both cancel out / disappear.
Never had to call in to make the trade with a trader. Occasionally their system glitches and there's an interest charge, but a phone call will get that credited back. When they do the adjustment, they also mention you can call in immediately to tell them to journal the shares to avoid the potential system glitch charging interest. I'm just lazy and rather not waste time calling in if it ends up working out