I have made the Ruby Cab kit. It's currently in carboy, waiting to clear and bottle. There was a lot of sediment, and it will require an extra racking or two. It tastes unusually good already, so I have high hopes this is going to be an outstanding wine in a year or so. However, it seems pretty different from the usual Cab.
I always use Bentonite, but in consideration of the above comments, will try using half or none of it in future red kits. Omitting it would save 15 - 20 minutes at the beginning, and maybe reduce some of the waste in racking, by reducing the amount of sediment. I have plenty of wine in storage, so I never try to rush my kits to completion in the recommended times.
If Bentonite is not used initially, I wonder if it's effective to use it after fermentation, in case a visible protein haze develops.
By the way, I never use sorbate packs in my kits, unless the kit includes an F-pack or juice for back-sweetening after fermentation. I just allow an extra couple of weeks in secondary fermentation, to be sure the yeast has used up all the sugars. I have never had a fermentation resume in a bottle (with a dry wine).