for visual example -
here are 2 photos from my old set of khukuri's
in this photo you see (on the far left is a 44" gelbu special style blade from khukuri house) from left to right a 30" ang khola, a 30" siru, a 25" chiruwa ang khola, an 18" ang khola, and then a karda and a busse shba.
on all of them the ring is close to centered, and even on the the one that kinda looks like it has a ring thats low, the 25" ang khola had a big handle, and the space below the ring more then accomodated 2 fingers before the swell at the bottom -
in that photo you see a 20" siru, an 18" ang khola, a 15" siru, a busse b9, and a 12" ang khola.
the 20" siru was one of my favorites of all time, the 18" ang khola is the one blade i kept from the old set (though i should have kept the 30" ang khola). the 15" siru does seem to have a lower ring then the other 2, but the bell doesnt start to curve until fairly low. so while less comfortable then the 20" siru, being smaller and having its bell shape, it wasnt so bad.
i never actually used the 12" ang khola... i got them to see if i had use for smaller khukuri's, and i found that the b9 kinda filled the gap between normal user knives and the heavier khukuries...
now the new collection -
from left to right
18" chiruwa ycs w/carved handle
18" ricent ang khola
20" chitlangi
17" sher atitude model
not exactly sure on the last one... pretty sure thats my 20" ang khola.
the ycs has an excellent handle, the 18" ang khola is just fine, and has a slightly oval shape instead of completely round. plenty comfortable. the bell shape starts higher then the rounded pommelled models (chitlangi etc), so the swelling makes the pinky are of the grip a little uncomfortable, but its still very usable.
the chitlangi is too low... its nice that the bell bottom curve starts lower, but even so my fingers are being pushed upward if i try to place the ring between my middle finger and ring finger. if i put the ring in between my ring finger and my pinky, my grip is a little to high, and i dont like the feeling of the ring being in that hand placement, it seems like the swivel action of the handle is concentrated near the pinky area, and anything rough there is more uncomfortable then if its in the center of the grip.
the 17" sher attitude is worse in style then the chitlangi in that the curve of the bell bottom starts higher. but is a smaller blade and handle in general, so its not all that uncomfortable. its just notisably low
and then the 20" siru. it may look like the ring is fairly centered, but the curve of the bottom swell starts higher on the standard handles (Siru/ang khola/ww2), so you notice the pinky area of the grip swelling even though your hand is technically a little higher then on the chitlangi.
honestly these are little things, as i can always lower the ring down to flat, its just that on some of the thinner handles, you only have so much to work with. i have enough wood and wood working skills that i could make a completely new handle as well, but thats one of those last ditch things unless you just want to do it to be doing it (or want a different material).
again, these are little things and wouldnt necessarily stop me from buy a specific model, but i do like the rings that are centered considerably more then those that are lower on the handle.