I had a 410HLF and an 810e at the same time, never owned the 410he. I got rid of the 410HLF, because it was my compact cab for recording and once I had the two Duallies and a ported 110, it seemed completely unnecessary. A lot of people bag hard on that cab, but it did fine for the typical Ampeg 10" tone, with a little extra low end punch. I always had the tweeter turned off, because f*ck tweeters forever.
I had to dig up this quote, because, well, what Corey said.