I just installed my CS battery, from Amazon, via Power-Matic. So far, looks like it is stuck at 30c, so I will try charging again to see if the temp goes up or not. So far, seems like a quality battery. I forgot to reset Accubattery b4 the install, so I have done that and will watch the capacity to see how it does. So far, on this charge, it is at 76% with 1h 35m screen on time. Pretty light use, a little web browsing, some Whatsapp messages and listening to some music now.
The install just requires patience. Used a hair dryer, went through a few guitar picks and one old credit card and one playing card. The glass did not break, I did not scratch the case up, and even the plastic cover is in pretty good shape. I had a new eBay case and covers, but did not use them. I also have a $10 eBay battery for just in case. It should be a lot easier to take apart the next time!