I'm having the same dilemma - trying to decide which sights to install on my PCR. It'll be used as an occasional carry gun so I'd like night sights but the choices are somewhat limited, as you've discovered. And for me too, it's come down to the GCW Dawson night sights or the TFX pros. I'm not enamored with the 3 white dots configuration of the Dawsons TBH and I'm leaning towards the TFX Pros. Also, having just last night installed Dawson FO sights on my P01 (range and local comp gun) and having to "fit" both sights by sanding them I'm worried that if I try to install a tritrium vialed front sight in the PCR, if it's anything like my P01 front sight install, the "persuasion" necessary may break the vial so if I went that route I'd likely have CGW install them when I send it in for a defensive carry package later this year. I know every gun is different so who knows, maybe the Dawson front sight would install no problem in my PCR but they might not. TFX Pros seem easier for a non gunsmith like me to install without issues.
Decisions, decisions... Good luck!
PS: I do like the Dawson FO sights I installed and do have a set of blacked out rears and an FO front sight for my SP01 (another range and local comp gun) but after last night's struggle with the P01 front sight I'm definitely having CGW install them (currently on their waiting list for a pro package install).