Isn't forum banter great?
As all of us know, there's
more than one way to skin a cat, and if it's working for you (meaning
very high survival rate with
thriving fishes) then,
don't fix it if it ain't broke!
Feed as much as your QT can handle. Try twice a day to start and check water quality.
For a freshly received fish I highly recommend feeding as many times as possible throughout the day. I generally feed every time I pass the tank, which equates to 10-12 times per day. If properly feeding and observing, feeding this often will not cause any issues with water quality.
I should add that I perform good size water changes every 48 hours with freshly mixed SW (RO/DI with 0 TDS + ESV salt) for the first two weeks. This is where having an overly filtered small QT/conditioning (10 gal tank with AquaClear 70 is perfect ratio - of course upsize that for larger fishes) system helps keep costs low and fishes happy.
Pellet form of food is a great way to pack in all the nutrients that fish need in a small package that does the minimum contamination to the water, and is my first choice in any tank, QT or not.
In a QT/conditioning situation it's incredibly important, no matter what your food choice is, to observe and ensure every piece of food that goes into the tank is consumed. Of course you will have a piece here and there get sucked into the filter, but I base food additions down to the individual number of shrimp when it comes to a particle size of say, P.E. Mysis. I'll literally feed two Mysis to the tank and observe. If it's eaten quickly, feed again. It's that's eaten quickly, feed again. And continue until they start to stop hitting the food so fast. Repeat several times per day. This style of feeding will ensure that there is minimum waste, no matter your food choice. If it's an incredibly oily food, perhaps consider rinsing in RO/DI water to remove some of that "waste" if that's a concern.
While I feed both frozen and pellets, I feel frozen is always going to be most natural for fishes to consume. Pellets can be great, but there's always fillers in them that no fish in nature would consume. Ever. Again, I feed both, so it comes down to what works best for you, IMHO.