Unpopular opinion: I hate the teardrop style heavy bag.
I do not get why martial arts and regular gyms are putting more of these things up, replacing the standard heavy bags.
It’s inferior and worse than the standard bag in almost every way with its only plus being good for body hooks.
Straight punches are awkward and only good for body level. The head level is at a much different distance level from the body, so if you condition yourself for the low level body punches, you’re at more risk for accidentally hyperextending if you try to punch higher or work in combinations. And even if you do punch at head level, it’s angled, so now anything landed is now at a glancing angle. Head level hook punches also run into that glancing blow issue.
For kicking, first and foremost, you’re limited to body kicks only basically, but the shape of the bag naturally trains bad habits. Because of how wide and rounded the bottom is, it’s natural to throw kicks from an upward angle that would in practice slam your shin/foot into an elbow. Trying to hit horizontally is awkward due to how wide it is, and head kicks limit you to only practicing downward style round kicks due to the curvature of the bag. You also can’t get a full hip rotation again due to how wide the bag is.
Front teep/push kicks are ok, but for side kicks, again it’s the same issue as the straight punches. The weight distribution also makes them land weird and it’s bad training due to how wide the target is.
It also conditions bad training for knees, because the shape again naturally conditions the practitioner to knee only upward instead of forward, and if hung high enough, upward is sometimes all you can reasonably reach.
All these issues are basically fixed simply by using classic heavy bag that hangs to the floor. I wish gyms would hang only one or two of these things instead of taking up over half the training area sometimes.