Pull it high, light it up, cap those delts.
Elbows lead, hands follow. Stop at chest height so your shoulders don't pinch.
Pulling the bell up your body with elbows leading drives the side delts hard, the muscles that give shoulders their width. The traps assist as the elbows climb, and the biceps help bend the arms through the pull. Holding one bell with both hands keeps the movement compact and centred, and stopping at chest height keeps the delts working without cranking the shoulder joint into a pinch.
Not if you stop at chest height and lead with the elbows. Pain usually comes from pulling too high or letting the wrists climb above the elbows, keep the range honest and most shoulders handle it fine.
One bell held by the horns fixes both hands close together on a single handle, keeping the pull centred and compact. Dumbbells let you set any width, so the kettlebell version is really a close grip upright row by default.
Side delts lead, with the traps kicking in as the elbows rise and the biceps assisting the arm bend. If you mostly feel your traps, you are shrugging, keep the shoulders down and drive the elbows out.
