I have test numbers in my scratchbook for 625nm XP-E2, 630nm 219B, 660nm XP-G3 and 617nm Osram KR CSLNM1.23-8K8L-24 . Will enter them in Excel at some point and make a nice post. The Samsung led may be for a next test run.
My general impression is that the performance of red leds from the different leading manufacturers are not that far apart, but that the far red XP-G3 is ahead (but has a bigger die).
Also looked at Luminus' horticulture stuff. Their SST-10-DR is available in both 90° and 130° beam angles. I'm no expert in optics and don't really know how would this impact the beam profile, but the tighter beam angle emitters may be desirable and the perceived brightness would be higher thanks to a more throwy beam collimation (related SST10-DR-B90 Octopart search). Some SST10-DR-B90-K660 parts in stock at Mouser (Octopart search link here).
Concerning the XP-G3 thing, will it fit under the C01S TIR? Because no way if it doesn't, I think.
I have highly recommended to use mode oder LOW => HIGH. As far as I know they agree to it as most people seem to like this mode order (see BLF no ano' edition).