Originally Posted by DiapDealer
This was also cross-posted in the MOBI forum. Further evidence in that thread clearly indicates a KF8 file, IMO: dropcap in Kindle for Mac ... simple, enlarged, initial first-letter on iPhone.
The whole Fire vs Touch line-height thingy hardly seemed relevant to me in this case, JS, but great job tracking that down if it's true.
Yes, it is true. I've seen the line-height bug on the Kindle Touch running 5.1.2. Because of this bug, if the eBook doesn't use any formatting that Mobi cannot handle, just create Mobi and forget KF8/AZW3.