If you rate everyone's #1 pick at 50 points, #2 at 49, etc..., people can do 20, 25, or 50 without messing up the rankings. That was how I did it a few years back. The only real negative is that people that that rank all 50 have a pretty heavy influence on the tail end. The problem with this is that you need to have everyone fill out a complete ballot to avoid skewed results. To allow people to not vote for all 50 players (or whatever number we ask for) probably wouldn't affect your top 10ish list, but it can skew results in the mid/lower levels. Example, assuming you start at 50 points for the top slot, if PlayerA is on three lists at 18 (33 pts) , 19 (32 pts), and 20 (31 pts) - their total is 96 points. If PlayerB comes in at 15 (36 pts), 16 (35 pts) and 21 (30 pts), his total is 101. PlayerB is the higher ranked prospect. But let's say the third list stopped at 20 people - then PlayerB doesn't get the 30 points. It's now a zero. He's now at 71 points. Your results have been skewed. You need to ask for a number and require everyone to fill out that number for an accurate list. This is especially true when you have a limited number of ballots.