Belay device for half rope

Hello Everyone!
I would like to buy a suitable belay device using with twin-rope. With assisted breaking. I have. 8,5 mm newly bought rope (still slippery). I would like to use all functions (belay, repell, lower), and if it's not too grabby, occasionally with thick ropes laso. Some of the Edelrid Jul devices would be fine, but which one?

Alpine up

I’d go GigaJul if you want the most versatility...great device! 

Well, depending how you thread it the Jul devices are going to be really grabby and in some cases hard to rappel with. I really don't care for mine. That brake assist is not worth the hassle of the other downsides. Petzl makes a tube belay device for thinner ropes or go with a BD ATC XP.

I use a Mammut Smart Alpine 7.5-9.5 on 8.1mm half ropes, it has plenty of friction. 

I have used nothing but the Alpine Up for the last 8 years, since I only climb on doubles.  However, I would not count on using it with thicker ropes.

Also, your title says half ropes, and your post says twins.  I suggest that you make sure you understand the differences between the two.

acrophobewrote: 
Also, your title says half ropes, and your post says twins.  I suggest that you make sure you understand the differences between the two.

Oh chill out. I bet his rope is rated for both. Most are these days unless its like a 6.9 twin. At 8.5 it may even be triple rated. Your belay device is going to be more diameter dependent than half vs twin technique. 

Jared Chrysostomwrote: I use a Mammut Smart Alpine 7.5-9.5 on 8.1mm half ropes, it has plenty of friction. 

I tried a single rope rappel on my new 8.5mm static rope with my Mammut Smart Alpine 7.5-9.5 and the assisted braking was non-existent.  Definitely test out your new belay device and rope combination while on a backup belay before committing to it.

JJ Burnswrote:

I tried a single rope rappel on my new 8.5mm static rope with my Mammut Smart Alpine 7.5-9.5 and the assisted braking was non-existent.  Definitely test out your new belay device and rope combination while on a backup belay before committing to it.

Interesting, I have belayed with an 8.8 in the larger Smart Alpine with no problems. Every rope / device combo is different. 

GIGAJUL

Re: rappelling w Jul devoces—flip it around and rap non-assisted mode (mega and micro), or just use the Giga in non-assist mode....smoooooooth!