Have you ever actually...

[zoiDman]

Nope. Once my atty is on, it stays on. I tried one when they first came out and wasn't a fan.

I've got one of those YFTK 510 Bottles and have been Refilling my RSQ with it. It's kinda a Awkward process. But it does work.

I will say this though for Anyone who uses a 510 Filling Bottle with a All Metal 510 Connector. Never Try to Fill your mod if the mod is On.

Because if you Accidently Press the Fire Button while this is Attached to the mod's 510 Connector...

... all the Electrons will come Stampeding Out of your Battery followed by the Magic Smoke.

 

[Steve Parry]

510 Filling Bottle with a All Metal 510 Connector.

I like the Reloader from VariTube. They used an ultem tip to prevent that, and made it a cap that screws on to your 60ml unicorn bottles. Just pull the tip out, screw on the Reloader and you're good to go.

As for breaking bottles, I've worn through one Reo bottle (In 5 years) and one for my DripBox 160 (In 6 months).