Why are we even voting for gender, age and so on when we did not for other Familiars?
Previously we've voted for Guardian Beasts, where you can randomize everything for extra/more powerful spells (Samantha, Cat Sith, Olivia) OR you can pick which class along with gender/personality/age and know exactly what you're getting (Nostromo and Firefly). However, the spell lists are locked and can't be affected by the players in any other way.
Familiars are completely designed by us, starting with picking the gender/age/personality and a starting spell, and then they will gain XP and participate in spell votes as if they were a Device Mage, so we can build the entire spell list.
It's basically discount Shadow Stalker, the spell...
It's really not, quite the opposite. Goldfish's original idea had the spell confer intangibility onto other as well + was only halted by magical effects, of which Arcana is the strongest game in town. That's way better than Stalker's power. Even then, Intangibility is just an inversion of Invulnerability, which is definitely a WTF spell, so I'd agree that it belongs in that category.
Maybe we can compromise on Kayleigh?
Get her Maintenance or Mass Weapons Tech?
The main issue is that the economics are better with the Gear. Mass Weapons by itself means Kayleigh can only build solid state weapons or tools. No mechashift, no power armor, no energy-based anything as she would need another tech skill to get them. Maintenance means Kayleigh can
fix anything from the Basic Tier of Tech, but she can't build anything, so we would still be reliant on Tim to build stuff for her.
With the Gear, we can build standard weapons and tools, Mechashift devices, energy + laser weapons/tools, power armour, vehicles, and mana batteries. We can also choose to donate the Gear's build slots into making new types of magical ammunition for Kayleigh's weapons. And of course, should we choose to, the Gear can work with Tim and provide one more Tech slot to his weekly build vote, increasing his output.
As I'm a bit torn on whether even sidekicks can break the "Magical Girl" squad themeing, buuut admittedly I think the magical-pet is often more male themed (Kyuubey comes off that way, Kerberus from CardCaptor Sakura, Chamo from Negima....) so it still works. 
