Bought the factory optional folding propellers with our L450S(#97) after reading a test which concluded that they were accelerating better, less prop walk, were faster both forward and backwards and of course dragged less. Except for the cost(a fraction of the total...) I am very happy so far.
First sail out we outsailed every boat! Good fun but of course not only due to the propellers. Manouvering and top speed: Cannot really feel any difference from solid props, but to be honest we were 0,5 kn slower than another 450 on a race
for the fuel
pumps the other day...
When sailing, I need to put the controls in reverse for a second. Then the propellers fold and, wow, no noise! Maybe not worth the extra cost but the solid props have always annoyed me in the past. Now I am broke and happy!