For a bit of math on that topic, here's some numbers!
Dice Pools that can achieve an 8+ on their Max die, with a net mod of +0 and no rerolling abilities, 50% of the time or better (with the percentage included)
- 6/10/10 => 51% chance of an 8+ on the Max die
- 6/10/12 => 59.166% chance of an 8+ on the Max die
- 6/12/12 => 65.9722% chance of an 8+ on the Max die
- 8/8/12 => 55.3385% chance of an 8+ on the Max die
- 8/10/10 => 57.125% chance of an 8+ on the Max die
- 8/10/12 => 64.270% chance of an 8+ on the Max die
- 8/12/12 => 70.2256% chance of an 8+ on the Max die
- 10/10/10 => 65.7% chance of an 8+ on the Max die
- 10/10/12 => 71.4166% chance of an 8+ on the Max die
- 10/12/12 => 76.18055% chance of an 8+ on the Max die
- 12/12/12 => 80.1504% chance of an 8+ on the Max die
To back up MindWanderers point, the only dice pool in the above list that involves fewer than two dice of d10 or better is d8/d8/d12. Minor Twists, even using Principles, are an intended part of the game if you don't use any bonuses to help out.