Frank: My daily driver detergent is powdered Tide With Bleach HE (top-rated by Consumer Reports). It gives excellent results in my front-loader. For the SQ, I purchased a jug of Wisk Deep Clean Original (which can be used in either a standard or HE machine). Wisk gets an overall score of 80, very close to Tide's 82.
I measured a "medium" dose and washed a load of whites. All I can say is I've never seen such tenacious suds! I have softened water, and I'm used to Tide being all about the suds, but after FIVE deep rinses, the Wisk was still producing a lot of suds in the SQ. I'm not talking a few bubbles, here; it was still producing a thin layer of foamy suds!
In fact, after the 4th deep rinse, I pulled the clothes out, refilled the washer and let it agitate. No suds at all. I started adding the clothes back in, and immediately there was suds was all over the place.
I used powdered Sears detergent (the version in the green box) for the next load, and had a crystal clear rinse. Sears' detergent isn't rated as high for stain removal by CR, but it does a good job in my front-loader. (It is also designed to be used in standard or HE machines.)
I'll have to experiment with the Wisk, as it is by all accounts an excellent detergent. There was a good 1/2-inch to inch of suds in the wash, but the machine had no trouble spinning it out. At any rate, I've never seen anything like it.
As for your question: By far, most people use liquids these days. I don't think any harm will come to your new SQ with either format.[this post was last edited: 10/11/2013-11:55]
