Hypersmurf said:Unless your goal is consistency.
Two DMs using two different rules is perfectly consistent, in the only context in which consistency is necessary.
There's nothing wrong with two DMs having different rules... except for the player who's blindsided because the DM didn't realise he's using a different rule.
So explain it, the first time it occurs. If the player keeps getting blindsided, find a player who has a clue.
Consistency gives everyone (in theory) a common baseline from which to make their modifications, consciously... rather than a chaotic jumble where nobody knows what's 'standard' and what's a house rule any more.
All rules are house rules, but some are more house than others.