kenwood33 wrote in post #18480064
Can I use the same x1t trigger on both canon and panasonic m43 (in manual mode only)?
If you only want manual and power level control (i.e., no HSS, no TTL), then yes, you can use a -C X1T on a ยต4/3 if you put it in single-pin mode (C.Fn-01 set to on). But it would probably be better to get an X1T-O for the Panasonic, because that way, you'll get TTL and HSS.
BTW, I can use my spankin' new XPro-C on my GX-7's hotshoe without any issue as a manual-only/power control transmitter. But if I stick the same XPro-C onto the hotshoe of my Fuji X100T, it won't fire and everything goes completely fubar (took me an hour to get everything reset, but that may have been because I threw an iPhone and A1 and APP mode into the mix). So, if I want to use it on my Fuji camera, I have to tape off the non-sync pins. Because the XPro does not have a single-pin mode function. [facepalm].
rburgett wrote in post #18491716
Are the L-Ion versions of the manual R2 flashes worth twice the price of the AA version? Just curious what others think?
I already have a bunch of AA rechargeable batteries that I'm using with my YN flashes, but am thinking about making the switch. I don't want TTL, just manual flashes.
I think whether or not the Li-ion versions are worth it really depends on how sustained your usage of flash is on a single shoot, how many speedlights you're using, and how often you have shoots. I'm a hobbyist with a light usage pattern. I drag out the OCF about two or three times a month. I rarely shoot more than a couple hundred shots at a time when I'm doing off-camera flash. And if I'm event shooting, then I'm only using one speedlight at a time. I've only ever had one portrait shoot where I had to swap batteries on three flashes (once), and that really opened my eyes as to why someone like, say, a professional event shooter doing a wedding who's shooting from morning (prep) until evening (reception) with multiple lights might really love Li-ion flashes. 
My one shoot with one battery swap for three lights required that I have 24 AA's charged up and ready to go. Which I did. But it took a while with only two 4xAA rechargers. Doing three or four lights with two or three changes would have killed me, and at that point, having Li-ion packs with the capacity of 3 sets of 4xAAs looks a lot simpler and nicer.
When I made my move from Yongnuo to Godox, though, I realized that I only ever had that one shoot where Li-ion would have been an advantage. The rest of the time, AAs have been more than sufficient. Throwing in not just the increased speedlight cost, but also the cost of additional battery packs/chargers, and the proprietary nature of the packs (vs. being able to get alkaline AAs just about anywhere), and I got myself some TT600s and a TT685C instead of a couple of V850IIs and a V860IIC. Granted, the cost of the battery packs ($50) probably shouldn't count, since one of those packs is roughly the same as getting yourself 12 AA eneloops, but if you already have the 12 AA eneloops...