Well I'll just add some info, and it might not be exactly what you are looking for. First off, the dot matrix display was not used after late '75. There are some later (77 to 79) displays that have a dotted look but you really have to look hard to see it and it's not the "classic" dot matrix display. So the sport does not have the dot matrix since it came out in the later 70's but it does have something that other LED watch module manufactures were doing and that is the magnified display. To cut down on cost, manufactures were making smaller LED numbers but magnified them in order to look normal. If I'm not mistaken, the Pulsar Sport has normal sized numbers so they appear even bigger since they are magnified. Some people don't like this type of display but I'm convinced that if LED manufacturing continued in to the 80's, they would have all gone this route like most of the modern ones today.
As far as Hughes, they are my favorite modules in that they've really stood up over the years and most of the ones I come across work great and keep the best time of all the vintage LED modules. I've got ones that were full of battery leakage and worked 100%. Pulsar modules were/are just a disaster when it comes to battery leakage.
MJ