I've got a Merlin 100 in my Swiss Ultra and a lot of people commented at the weekend how surprised they were that it was only a 100, flying both back to back, I do prefer the vertical of the 140 but I find I can still get an 8 minute flight even on the 100, I much prefer the lighter feel on the sticks and the sloooooooow aero's
probably around ....... 100mph 8 points and knife edge will sound boring to the average 300mph UF pilot, but it does it so well, and I couldn't afford another 140
