Sorry to go against the grain here guys, but for residential, and we've done LOTS of residential over the past 15 years, all we've ever done is backstab. Such a time/labour saver! I can only think of two scenarious with backstab problems, one is when we tried the off-shore China receps (never again). And the only other time we have problems is when re-using a previously backstabbed plug. The connection just isn't solid enough the second time around.
Otherwise, never had a prob with backstabbing and will continue to use this method.
