It's funny, I often find myself in these discussions about performance LSA type aircraft, and the reality is, if one really need lots of speed, then one fly something fast, and stop trying to wring the neck out of a 912ULS to get past 120kts.
I had this chat the other day and said, I like to sit on about 112-115 That will do. This guy says... yeah I like to sit at least 120, as I like to get there.
Hmm... I had to remind him that the reality is, there are a number of factors that could speed you up or slow you down! Simply arriving at the airport and having to either wait a bit to get down or the like, and the valuable minutes you saved torturing your engine, are gone. Add to that head winds and tail winds, and well, it all goes out the window.
For me, the journey is just as important as the destination!