Echoing
@UKRob I think we should split the terminology - shavette is a dresser, a nape shaver, which uses full or half DE blades; something like the Feather AC should be considered more as a disposable straight. The purpose is different. Consider that culturally, the Japanese appear to have an affinity with shorter blades (see the Kamisori style straight razors), the Feather AC makes sense with its size. Yes, there are Japanese made Western style straight razors which are indeed of a similar size to Western straights, but you get my point.
Whenever shavettes get discussed, the tone usually shifts to how hateful a shave you get from the things. Well, to return to my point about purpose - these are for shaping, not shaving. Furthermore, I usually end up chiming in about Weck style razors, which were designed for full face shaving and re-purposed by the military (USN) as a large contract for medical prep. More contemporary, we see the same design under the Personna brand ... curiously, as shapers. I guess because nobody (well, me on occasion and a few other folks) uses them for full face shaving anymore.
A few years back, I reviewed a couple of razors from the East - one from Japan (Feather) and a clone from China (Vincent/Cloud) which use those blades that have a serrated appearance. These are indeed most definitely shaper blades - they're thinner than the Weck patent, but they do deliver a seriously good shave!
... continuing from my interest in vintage Weck razors (you can look them up, but they're disposable blade frameback razors), I have gained a couple of Eastern shavettes: one Japanese (the Feather) and one Chinese (I suspect a clone, from Gan Village Green on eBay). These shavettes take...
www.theshavingroom.co.uk
For folks who are interested in trying out the straight edge shave and steer towards shavettes (using a DE blade), do yourselves a favour and eBay a Weck Sextoblade and a pack of blades from Personna. Failing that, Personna make the razor and it can be had for a few quid. It's okay, but not a Weck.
^ these blades will fit a vintage Weck if you do get one of those.