Uwe,
if you're talking about the photos of my last post: http://mauisurfreport.blogspot.com/2007
wind.html, sorry I probably wasn't clear... those photos are from an old photoshoot and the sail is a 4.7. I corrected the text and it should be more clear now.
I don't have any photos of the recent light wind sessions (too busy sailing myself), but Dolf posted that beautiful one on his "happiness is" post...
Boom: it might have had the NP logo in its early day (gone now), but it's a Fiberspar. I love it's light weight and its thin diameter. I replaced the arm ends at least four times (10 bucks, easy to replace), the head and the terminal a couple of times each (easy to find an old complete boom at garage sales for 50 bucks) and I've been using it for a few years now.
Actually I had a short but intense relationship with a Arrows boom (pretty good too, just slightly heavier maybe), but it ended when it snapped.
I'm the worse person to ask about HSM booms, since the only one I tried was a SM and only for three sessions. I was getting used to it, but then Jeff needed it back. Can't express an opinion.
The other forum users can help...
BTW, I caught two-waves-two with an 88l Seal and I loved it. Too early to make a complete report, I'll do it when I'll more time on it. For sure it's pretty damn different. In my particular case, I'm used to all kind of weird boards, longboards, short longboard prototypes, etc... and that makes me a particularly quick receptor of new shapes.
In other words, if you only sail regular windsurfing boards, it will take you more time to get used to it.