Hmm, so If specs are true. S15 and T15 buyers are fucked up again. Huge different on same 7nm chip. I hope Bitmain will release some good firmware for S15/T15 which will increase performance.
Keyword there is "again" s17 buyers will have to face the sane story a few months later, it has always been this way, lucky mining btc is less risky than alts, look at z11 improvements over z9, or look at x11 asics, it is even worse.
I have come to realise that the best asic is the one the ROIs faster regardless of effiecny , new gens will always most likely always have a longer ROI period.
Having said that we are uncertain of how many gears they will have to sell at this current low btc prices, they are now totally out of stock of all btc miners , not sure if production is slowing down or they are just fucking around.