Conduit too big?

I ran into a similar problem after I made some gear changes. There isn't any difference between the two when it comes to the volumes posted on their product pages.

Miniposa – 2,400 c.i. (39 l.) in main pack body/extension collar
Conduit – Main Body: 2,100 & Ext. Collar: 300

I found that most UL cottage companies GG, ULA, MLD, etc. don't offer much when it comes to smaller than 2,500 ci packs. Zpacks have an 1,800 ci pack, and Golite has a 25 liter pack. Black Diamond, REI, and Salomon have some 30ish liter packs made out of heavier materials and geared towards adventure racers.

I decided to substitute different sleeping pads according to how much volume is left over, which right now means deciding between a BA Insulated Air Core, GG Thinlight, and a generic closed cell foam pad. I really like the side compression chords that the Ohm has.

Anyone else have any tips for dealing with unused volume?

A third option would be a third backpack, more durable than the miniposa and smaller than the conduit. If you want one of those, maybe go for a silnylon backpack like those made by Mountain Laurel Designs or Zpacks. Otherwise, I'd just pack the conduit more loosely and know that you have extra space if you need it (for instance, food for 4+ days takes a lot of extra space in a backpack).

I just stuff my bag in the bottom of the pack without compressing it and it packs fine. If I do have extra space I just roll the top down and strap it. Compresses and packs just fine with all sorts of various loads.

n/m