I dont think anyone said they were the best thing ever. I think the only extreme statement here was you saying GTX chargers are flaming pieces of crap essentially..
We have quite a few customers running GTX4202/GTX4294's with our S400 Turbo Kits and really enjoy them, they make great power, and have great spool up characteristics.
Garrett also spends a lot of money on R&D and are always pushing forward, and I imagine they focus quite a bit on designing their chargers to meet diesel applications especially given the amount of Garret turbochargers used in OE applications on diesels.. IE, every duramax truck.. ever powerstroke minus 6.4s, etc, etc
I will say when looking back to LB7 testing with our chargers, we did end up sourcing borg warner components because we found people would compromise the turbine wheels quicker with the larger garret turbine vs the borg one we chose, so I know exactly where you are coming from there!
I think technology is advancing always, keeps us all competitive and in business, as long as trucks keep getting faster, like you are so great at doing, this industry keeps advancing, and thats all that matters to me, on that note, go break into the 9's already little gyngy!