Practical min+0. If someone beats this on secondary by cutting a piston trackloop, fair play to them.

All glyph and conduit locations remain unchanged from Haxton's original layout. 

I only got 5R on my own: My first attempt's layout was much inferior to this. On seeing Haxton's solve, I promptly abandoned my own, instead improving his 5R to a 4R with the two piston trackloops.