My favorite bids in Spades are the riskiest ones: 10-for-2, nil, and blind nil. 10-for-2 is always worth 200 points, and most rule sets I've seen put nil at 100 and blind nil at 200.
In our group, we eventually had to put restrictions on these bids because they were making it too easy for people to catch up from being behind, which was diluting the value of solid play in less dramatic rounds:
- no bids of 10-for-2 or blind nil unless the bidding team is down by at least 100 points
- only one bid of blind nil per team per game
- players do not get to trade two cards if someone calls blind nil
What other house-rules do people suggest for limiting the bomb effect of these three bids, or alternatively, do you not agree that it is a problem?