Something I've noticed when playing the heart candies levels... Sometimes I'll have two striped candies explode in the same direction at the same time during the same move, yet the hearts only move two spaces... why is that? I would think they would move double the spaces since they've been hit twice!
I see why you might be confused about that! I have noticed that too. Anytime you swap two special candies together, or just hit it with a single special and it strikes a heart, it will progress along its track by two spaces. It doesn’t matter if that special candy was combined with another, or if it was used on its own. Before you attempt to hit the heart with the special candy, examine the candies next to the heart to see if some more matches will be made after you activate your special candy. If you get more matches next the heart after you hit it with the special candy, it should move along its track by more than 2 spaces. Hope this helps! Bye!