Coomback versus Hardside

I demo'd both skis and prefered the Hardside for it's stability. The Coombacks skied well but they were a bit less stable in choppy hardpack. Given their extra width I suspect they are better in powder, but I have no direct experience in that matter. I was looking for an all-around ski that would be used in-bounds and on soft snow backcountry tours and went with the Hardsides. (I have a light setup for corn and big tours). After two seasons I am very happy with them. You can ski them fast and hard in the area and they float through the powder. The weight difference is pretty small (1/4 lbs) and your binding choice matters more if you're looking to save weight. When I ski powder with my buddy on his Coombacks we both seem to be having equal fun. I tend to take bigger faster turns with the Hardsides and he tends to make shorter quick turns on the Coombacks but I suspect that's style as much as the ski. My recommendation is to go with the Hardsides if you're skiing a lot of in-bounds and you like to ski fast and hard. The Coombacks are probably a good choice if you're primarily touring and you tend towards quick snappy turns. I don't think you can go wrong with either ski.

The hardsides do not meet the required minimum of 100mm underfoot, therefore they are not worth considering, and are obsolete, even if they are heavier than the coombacks,  ??? (which barely meet the minimum requirement of a relevant ski).

Only skiers who are so talented that the combined awesomeness of their skills and a pair of fat skis would offset the balance of nature, causing climax avalanches and rivers to run upstream, should ski on skinny assed retro sticks such as these.

Carry on.

Yo, kneel, take that flip talk to TGR 

Hardside is 130 grams heavier due to steel reinforced construction

Steel?  Nah.  K2 metal top sheets are Al alloy.

My Coombacks (well, actually, grunge AP's -- same skis) are great for soft snow.  Several touring buds are on Coombacks and love them.  Very versatile touring ski. 

I switch to something lighter and stiffer (Trab Stelvio Light XL) after the spring consolidation.  OP, you have the Shuksans for May-June touring, so the Coomback would be a good acquisition.

Titans?  Oh my, so heavy Coombacks turn easy, work great with TLT5 or Maestrale/Rush

I had a pair of Coombacks and loved them. I'd spend some time deciding which length suits you best as these ski short with the early rise. I was on a 174 and moved up to a 181 which was MUCH better. I'm 5'11" for reference.

I've got Shuksans with dynafit and Garmont Megalights, and now Hardsides with dynafit and Garmont Radiums. The Hardsides are worth the weight. No matter what I do, I miss the powder days and the Hardsides are so much better for lift skiing, crud, crusts, ice, in other words, 90% of PNW conditions. With the Radiums, not really much extra weight. Have not tried Coombas so can't compare. They look just as patriotic.