Limited trading, but with a really high limit was always my favorite.
For example, the trading rules from ATD2013 (ignore the stuff about the trading committee; it was kind of helpful in a large draft I guess).
- Trading is to be reasonably fair and balanced and lopsided trades will need to be re-worked or dropped. This is at the discretion of the trade committee.
- Each team may make up to 8 trades.
- A submitted trade counts towards the maximum, even if it is vetoed (exception - first time GMs). Don't submit lopsided trades.
- No more than 4 assets per team may be traded at a time.
- Swapping all positions before the draft doesn't count as a "trade" for the purposes of the above rules.
- Trading while on the clock is allowed. However, using your entire clock to openly shop a pick annoys your fellow GMs, so do it sparingly. If GMs abuse trading on the clock, a rule could be added against it
Basically, the effect of the rules is kind of "unlimited trading, except for stupid trades"
