While I would love to say the SR 88, It definitely would not be the right ski. Since it appears you are in Tahoe I would look for something that can handle Sierra cement while still being an easy ski. In this case I would go wider. I looked back at your first post and checked you height and weight and skill level.
After reading into where you are in your progression. I would get AR in 168 and maybe at most the 175. To complement this on piste ski that will help you advance in your carving and manage weird snow, I would suggest a true off piste powder ski so that you can excel in your backside prowess. The Edge 100 in the most accessible powder ski we sell, but it may still have more edge that would suit you. I think you could benefit from a very light powder ski that is super easy to pivot and has the ability to smooth out the weird variations that tracked out "Sierra cement" can leave in your path. If you can drop the coin there is only one ski that fits this prescription and that would be the Renoun Citadel 106 in the 178cm size for you. Of all the brands I have skied in the past few years it was the only ski I felt is bringing something special to the table other than Stockli. I think this would be a really good option for advancing your abilities on more aggressive terrain off piste. It will be very easy and light but you will be able to grow with it and have a good balance of not getting bossed around by funky snow and not getting pushed around by the ski either. After you perfect your carving with the AR and start to carry that prowess off piste in the years to come, then would the time come that I suggest a SR 105 for off piste powder, but until then the Citadel will be the best option for your advancement as you hone your skiing off piste.
A two ski quiver at very different widths should serve you well.
