I'm quite new to this straight shaving business, and I haven't seen let alone used a Shavette, but I'll essay a couple of opinions.
Firstly, there is a difference in edge quality between a stropped straight and a factory sharpened blade. This isn't a matter of "sharpness" really (there's a thread about that can of worms below), but smoothness, and for my money this is where the straight razor really shines, and why it is so comfortable. There aren't all that many DE blades which don't irritate my skin to be honest, and that's part of why I've ended up revisiting the open razor. I suppose there's nothing to stop you stropping a Shavette blade in the spirit of experiment now I come to think about it.
Secondly, I've been careful in my selection of soap. So far I've used Mitchell's Wool Fat, Cella, Tabac and Henk's No.5 cream, all of which I consider to be particularly protective and slippery. Wool Fat wins comfortably for me: it's a very robust lather, and I feel more confident for it.
Another minor point which was touched on in SOTD this week is that a heavy razor seems to be an advantage. My Fenton 6/8 is very nearly a wedge, and it's the best part of 1/4" thick at the spine - that's a heavy razor, and I just let it do the work really. I take it the Shavette is fairly light?
The main thing of course is practice, getting the light touch combined with confidence and dexterity. I believe that you're supposed to put in 5000 hours of doing anything to master it, so ... early days