I agree with Felon. and nobody yet commented on the main point in his original post. Take 10, although it looks fine at first view, introduces starnge probability distortions.
As for take 20, I find it is even worst. It makes it very difficult for a DM to choose a proper DC. For exemple, if my players have Search +5 and I chose a DC of 25 for a trap, they will find it immediately if they take 20. However, if they don't (lets say they are in a hurry or in a fight) then they have only a 25% chance of finding it. Even worst yet, what if I want a trap that can't be found automaticaly ? take 20 makes that impossible. Where is the fun in that. It transforms something that should present an interesting challenge into an all or nothing (and boring) proposition.
Finaly the endless debate and confusion about when one can or cannot take 20 is another reason why this rule should be removed.
Now don't get me wrong. I used to find this rule brilliant when I first read about it. But further inspection reveals major flaws which are curiously rarely discussed or acknowledged.
Now the real question is, can we (and wizard) find another system that has the same advantage of take 10-20, yet none of these (in my opinion) fatal flaws.
As for take 20, I find it is even worst. It makes it very difficult for a DM to choose a proper DC. For exemple, if my players have Search +5 and I chose a DC of 25 for a trap, they will find it immediately if they take 20. However, if they don't (lets say they are in a hurry or in a fight) then they have only a 25% chance of finding it. Even worst yet, what if I want a trap that can't be found automaticaly ? take 20 makes that impossible. Where is the fun in that. It transforms something that should present an interesting challenge into an all or nothing (and boring) proposition.
Finaly the endless debate and confusion about when one can or cannot take 20 is another reason why this rule should be removed.
Now don't get me wrong. I used to find this rule brilliant when I first read about it. But further inspection reveals major flaws which are curiously rarely discussed or acknowledged.
Now the real question is, can we (and wizard) find another system that has the same advantage of take 10-20, yet none of these (in my opinion) fatal flaws.