A house ruleset I used to use regarding reduced prices of Adept Powers was the following:
• Berserk: Characters also ignores dice pool modifiers from stun damage for duration of effect.
• Improved Physical Attribute: new base cost = 0.5 per level.
• Reduce the power point cost of the following powers by half: analytics, animal empathy, blind fighting, cloak, counterstrike, distance strike, elemental resistance, facial sculpt, free-fall, gliding, great leap, heightened concentration, improved sense, indomitable will, iron gut, iron lungs, iron will, living focus, magic sense, melanin control, metabolic control, motion sense, multi tasking, natural immunity, nimble fingers, piercing senses, power swimming, rapid healing, rooting, spell resistance, supernatural toughness, temperature tolerance, traceless walk & wall running.
I found that this made a lot of these often unused powers much more desirable and people would take them far more often, and I don't recall a single time when it unbalanced game play. If anything I sometimes still felt like giving the powers a boost for role playing and characterization. Many if not most powers are overpriced PP wise when compared to their cyber/bio equivalents. IMO.
I currently use very few to zero house rules solely due to the fact that now days I mostly run beginners games at a local comic shop (on their 'get new people into gaming' night), and because of that I try to stay as vanilla as possible in order to keep things simple for the new players.