Pyrex RSST came in the mail today so banged out my workout really quick and got to building.
The center post for the Pyrex is the silver plated brass one. I had been using it with my original RSST.

Dual micro for the Pyrex.

Cotton auto drip and SS mesh with a 4/3 wrap. Both right around .7 ohm.

Both caps have 5/64 air holes.

No clear advantage of the Pyrex aside from looks and slightly larger tank capacity.
So far the cotton is winning. The mesh has harsher TH and puts out less vapor. Cotton also has more and better flavor. Mesh get's the nod for convenience though.
The center post for the Pyrex is the silver plated brass one. I had been using it with my original RSST.

Dual micro for the Pyrex.

Cotton auto drip and SS mesh with a 4/3 wrap. Both right around .7 ohm.

Both caps have 5/64 air holes.

No clear advantage of the Pyrex aside from looks and slightly larger tank capacity.
So far the cotton is winning. The mesh has harsher TH and puts out less vapor. Cotton also has more and better flavor. Mesh get's the nod for convenience though.