Advanced Sim Racing ASR6 or SL P1X

[Wagz]

Need to order a rig ASAP especially with the lead times extended right now. I had pretty much decided on the P1X as a cry once option and no compromise. I did recently come across the ASR6 and watched the SRG review. Both seem solid, similiar price. Would be using side mount for DD1. I will be using Heusinkveld sprint pedals. Any thoughts on the setup, differences in things like pedal tray/seat design etc? Wheelbase mount stiffness? Does it matter if I get the seat bracket from the rig company or should I order them from the seat company like Corbeau or NRG/