I've put a lot of effort in tuning my cube, making sure archetypes had critical mass, but more generic decks were at a similar power level. The cube is currently at 540 (12 players) and I found that 50% extra cards kept enough variance that drafts were unique, so this number is good for 8 players.
The problem is, I did this fine tuning for exactly 8 players. I ran a 5-man draft, and all archetypes were thin. And if you think about it, they were supposed to be. My 10 archetypes for 8 people are okay (especially with a lot of overlapping cards), but 10 archetypes for 5 people is terrible - only 3 were drafted and even with overlap, many cards were dead.
Since I don't have the option of always having 8 people, one solution is having a cube with a number of archetypes and card count that scales appropriately to the number of players. I could make something like a core cube of 360 and a 180 card expansion for 7-8 players, or, even better, make 3 modules of 180 cards that can be mixed and matched to get 180, 360 or 540 card cube. This scales well - if I want more archetypes in the future, I can add a new module - this works as long as modules have a similar power level, and makes it way harder to figure out the format.
2-4 players would use 1 module (50% to 100% of cube used), 5-6 players would use 2 modules (62.5% to 75% of cube used) and 7-8 players would draft 3 modules (58.3% to 66.7% of cube used).
The configuration I would use for my cube, for example, is this:
Module 1
The problem is, I did this fine tuning for exactly 8 players. I ran a 5-man draft, and all archetypes were thin. And if you think about it, they were supposed to be. My 10 archetypes for 8 people are okay (especially with a lot of overlapping cards), but 10 archetypes for 5 people is terrible - only 3 were drafted and even with overlap, many cards were dead.
Since I don't have the option of always having 8 people, one solution is having a cube with a number of archetypes and card count that scales appropriately to the number of players. I could make something like a core cube of 360 and a 180 card expansion for 7-8 players, or, even better, make 3 modules of 180 cards that can be mixed and matched to get 180, 360 or 540 card cube. This scales well - if I want more archetypes in the future, I can add a new module - this works as long as modules have a similar power level, and makes it way harder to figure out the format.
2-4 players would use 1 module (50% to 100% of cube used), 5-6 players would use 2 modules (62.5% to 75% of cube used) and 7-8 players would draft 3 modules (58.3% to 66.7% of cube used).
The configuration I would use for my cube, for example, is this:
Module 1
- WUR Spells Matter
- WBG Enchantments
- R Burn
- RG Lands
- WR Tokens
- BRG Sacrifice
- WU Skies
- UBG Graveyard
- UR Artifacts
- WRG Counters