A couple of suggestions.
Use your low limit card to pay for MyFICO products monthly, then it a small amount and can report as activity. PIF as soon as it reports
Use online banking to pay of MOST of your CC debt BEFORE the card reports to the CRA, then PIF as soon as it reports the low balance and some activity. That way - no finance charges
The slide from grace is really more like gliding
And I've found the trick is not to stop the sliding
But to find a graceful way of staying slid