Giga Jul

There are people that didn't need a seat belt for 41 years too, but then they needed it. You don't have to start using one, but its probably a good idea. To me it is not about skills. You can do everything right and still get hit by ice-/rock-fall or you can have a medical emergency. The ABDs offer

All of those that you mentioned do exactly the same things: belay with single or double ropes, rappel on single or double ropes, and "guide mode" belay from the top anchor. They're all great, so you could pick any of them and be fine. Alternatively you could look into getting an assisted belay devic

Get an Edelrid Giga Jul. Single most versatile device which is compatible with twin/double ropes and has assisted braking, even in trad context. I'd ignore the CT Alpine-Up, just doesn't have any advantages over the giga jul.

The pilot is single rope only, without guide mode. If you want assisted braking for winter climbing an Edelrid Micro/Mega/Giga Jul would be the most obvious choice, followed by a CT Alpine Up or a Mammut Smart Alpine.

Edelrid's Jul family is The Way. Jul 2 is single strand, and shares geometry with the dual strand Mega Jul. These tend to give the best lockup with most ropes, but it depends a lot on the carabiner, too. Skinnier biner stock tends to lock up tighter, but I get good results with an Edelrid Bulletproo

I also don't know of any ABDs which can feed 2 strands, would be sincerely curious if you could name any. The Edelrid mega jul and giga jul do everything a regular tube does, and they're also assisted.

Most versatile is definitely the edelrid giga jul. It's got assisted and standard modes, 2 rope slots for double ropes or rappelling, guide mode, and is pretty affordable. This is good if you want one device for literally everything. If you're only going to be doing single pitch sport, it's hard to

I like the Edelrid Giga Jul for trad climbing. Auto braking and still usable as a tuber and double rope rappel.

Edelrid recently updated their Mega Jul. I'd love to try it out, but since I have a Giga Jul (which is shit if you don't use the exact right rope) and a Grigri (I don't like it, but it's workable), I don't actually need a new device.

For about the same price as an ATC Guide you can get an Edelrid Giga Jul which is a much more versatile device.