Every hay provider will naturally have fluctuation in quality. If you know your rabbit enjoys/does not enjoy certain cuts of timothy hay, going with a provider that “locks in” the cut you get is beneficial, like SPS, so you know at least you’re always getting soft leaves or hard stems, depending on the cut you choose. 1st cut is actually the cut with more fiber, stems, and seed heads. 3rd cut is the softest variety I believe.
With online, I think it’s tricky. The only way to truly know you’ll get really fresh hay each time is for you to physically see the hay in store or at a farm before purchasing. Obviously this isn’t something every owner has access to, especially during COVID-19 restrictions. I personally have been generally satisfied with SPS. When my order was not fulfilled or in satisfactory condition, customer service always got back to me with a reasonable compensatory action. Outside SPS, I only have tried Oxbow, which my rabbits enjoyed (slightly less than SPS I think), but going to the store to get them was a hassle, haha.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.