AM's preorders were batch products with a longer leadtime than usual due to a 9 day public holiday being in the middle. The Prismas already existed and were just being made in sufficient quantities. The SPTech preorders were based on chips which didn't exist yet to go into miners which hadn't been produced yet. As you saw, this meant that the final product came back at 75% hash rate and 30% higher power consumption. AND, the SPTech preorders were over a 3-4 month period, not 4 weeks.
You still don't get it. Or don't want to. What you said about SP-Tech preorders was available until August when the first units of SP30s shipped. Afterwards the product existed and was just being made in sufficient quantities.
Since August there were no pre-orders. Only batch products with a lead time. We are past half October. That's over 2 months since the SP30s exist on the market. Am I wrong? Even now you can order the SP35 Novermber Batch 1. Where is the pre-order?