I'm a bit suji stupid. I've sold a couple and I think I'm down to 5. That does not include cimitars, or "butcher" knives, The group includes a Gengetsu, stainless clad white, an AEBL DT, and a Heijii carbon, all in 270mm. Also a 285mm Wat Ame Kintaro and a 300mm Stainless Kono.
The Kono, 140g, (and still 300mm) is the lightest of the bunch. It will cut most anything but is a little flexi. It has found a home as a knife for cutting wedding cake at catered events where every mm counts.
The Gengetsu, 155g and DT, 150g, are at their best with smaller roasts, tenderloin and raw protiens. Both have a little flex. They are quite versatile, either could be your "only" suji but would not be my first choice for cooked protiens.
The Wat, 209 glorious grams. My favorite of the bunch. I could sell the others and still be a happy camper - but who's gonna sell a Gengetsu or a Devin? It's a stiffy in any application yet nimble enough for detail work.
The Heiji is the biggest dog of the bunch. 229 gr. Between the grind and the weight, stuff just falls apart. Best of the bunch for making big things into little things. Not long on nimble. Not a subtle blade. Panda sold me this one (at a great price) a couple years ago and I still thank him every time I use it.
All this is leading to a point. I find the weight on the suji to be almost as important as the grind. Shop for one from a regarded maker. Make sure it's thin behind edge but not necessarily at the spine. No lasers unless it's your second (at least) suji. If it's your only, I'll suggest 165g as a lower limit. In a well built knife the weight and amount of flex will correspond pretty closely. And flex is not a good thing. 270mm is a good length. I've not had to cut anything with a 270 that caused me to wish I had a 300.
Had a SIH that I liked but was a little too light for my preference. Had a Toyoma, excellent knife, that someone wanted it more than I did. Same thing with a Wat Pro. Next suji will probably be an HSC Zwear. Great application for a steel that holds an edge forever. Want to try a Gesshin Heiji for the steel. May have to get on Tillman's list and beg for a Nilox one day.
And a little porn for those stuck at home.
Marko scimitar
Haburn "Butcher"
The Wat
Heiji
DT
Kono
Gengetsu