Just wanted to say, the splinter with red panda is not necessarily better than what you have, since as far as I know none of us have tried what you have... So how could we possibly know for sure? If you think it is working well for you now, then that's great!
Yes this is my understanding, it is basically just the same for color screens, but those are the only two mods that have that compatibility... It is not necessarily only the firmware, but also the mod, for example the RXgen3Dual may not be good for setting up temp control in my experience, while the P80 is for some reason...
If you do not like these mods, and do not want 18650 batteries, then yeah I wouldn't bother if you think you are getting good performance with what you have now...
Not sure what you mean about hanging over though, splinter z does not hangover on the Ravage or the Espion (only slightly on the front and back), it is actually a pretty perfect fit though for the sides... You can rest the mod on one of the smaller sides, to keep the splinter hovering above the table, without resting it at an angle with the mod on the table... Just like G3D and P80.
Haha yes, recognizably or noticeably works too!
So I have a Splinter V2 set up with Arctic Fox on a P80 and accurate temp control for me using TCR 125 I think with locked resistance around .25 too and 45w max. Then I have a Splinter ZV1 on a Ravage with Red Panda using TCR 160 and locked resistance at .385 (so it just rounds up to .39 but on the low side) and Splinter ZV2 on an Espion with Red Panda using TCR 160 and locked resistance at .415 (so it just rounds up to .42 but on the low side) both with max wattage of 50w...
I originally had the ZV1 on a different Ravage, same settings, but unlocked resistance, and it was working well enough. Then I got the ZV2 and swapped it onto that Ravage instead, also seemed to be working well enough I think... However in use I had accidentally set it to stealth mode somehow, so I couldn't figure out why the screen kept shutting off when I was trying to press the trigger for a hit, until I plugged it into the computer and saw the stealth box checked lol (this is a big benefit of arctic fox and red panda, being able to use the computer to set things up)
When it stopped working though, this is my original black ravage btw, I decided to set up my newer purple ravage and the blue silver espion I had just got as well with the ZV1 and ZV2 respectively. In doing so, I seemed to discover that the unlocked resistance was not really working for me anymore with these two specific mods for some reason... So I used three different mods, running tubo firmware, each one displaying different cold resistance for each Z, and then kind of averaged out to use the resistance values I mentioned above (I chose to go on the low side, rounding up, based on the different values across the different mods I was seeing, I was testing the different values at one set temperature keeping the same TCR value, just tweaking by .002 at a time, before deciding the values I mentioned above seemed to work best for me)
Long story short I think I am getting pretty good consistent performance now with both of them, but the Espion is noticeably heavier than the Ravage (double-edged sword of more metal? I do really like the look and feel of the Espion, but not the weight and modest heft compared to the Ravage) and I think just generally the ZV2 runs hotter? I mean both are working in temp control, but like the range I am using is different, I can start lower with the ZV2 and I can go higher with the ZV1... I think I may put the ZV2 back on the original black ravage, where the resistance is unlocked, and try that out again, for the ergonomics first most, then I will see if I want to tweak it to the settings I have on the Espion... (could try ZV1 on Espion too and see if maybe the mod itself is more of a factor?) Not sure when I will do that though, right now I kind of like the difference between the two for some extra variety!
Anyway I meant to post this a while ago, like a few weeks, when I set them up as I described above... Bossman's advice is truly fantastic, but it is not necessarily universal, so find what works best for you!