One overlooked aspect of Tanto points is that, on a long heavy chopping knife, the American Tanto shape in theory allows more mass closer to the tip, without losing as much initial point penetration. This is because the design allows a more acute point geometry, despite this point starting nearer to the tip (some Busse knives have quite blunt points for example, showing a near-vertical radiused edge even behind the point, and this illustrates the disadvantage of using a broad radius to keep more blade mass forward, instead of an abrupt angled transition). This "Tanto" angle, when done in a certain way, in theory allows much increased weight torwards the tip, while retaining some significant piercing ability.
The only blade design I can think of that fully utilizes this "Tanto" advantage is the Tops Hellion 20/20. The knife is very well made (straight in every way), but needs a heavily reprofiled edge, the Tanto point in particular probably requiring power tools for sharpening the forward edge (it did require this for me). Once this is done at the edge, the way Tops did the geometry of the point fully exploits the point's late-start advantage (the point tapers perfectly, seen from above, in the way it is factory ground): The result, when combined with a blade that widens towards the front, is a knife with incredible mass near the tip, yet fully capable of stabbing motions (in part because of the "dropped" sharpened false edge). In tip mass for its size, there is virtually no other knife that is even in the ballpark of it, and this gives this 9" knife a truly unique sword-like feeling for something so short...
It is too bad some of the balance advantage is wasted by Tops by using an untapered full tang, which brings the overall knife weight to a marginal 21 ounces (barely 3 ounces lighter than the famously heavy Buckmaster), this without any extra gain in forward weight. Maybe I am wrong, and this "waste" of weight is actually not waste, because it still feels better in the hand than any big knife I have ever handled (in particular, the awkward-looking handle is in reality superb), and you litterally have to hold one in your hand to understand how revolutionary its versatility is. For instance, you know instantly that what you can't cut you may very well break with the impact of the tip: Good luck achieving that with the thin sharp tip of even a Trailmaster... Yet it also punctures very well, and the tip's edge can even slice like a razor once heavily reprofiled.
Here my reprofiled Hellion, with the Chris Reeves Jereboam for reference:
Tip angles -top false edge untouched- (the main edge primary bevel was re-sprayed with masking tape and very tough lacquer paint to regain a neat appearance near the edge):
What I meant by outstanding tip geometry from the factory...:
I made mine one of the sharpest knives I have ever owned (slightly sharper than my Jereboam Mk II), so it is possible, but after all the work I am loathe to use it (it is now my favourite knife even over the Chris Reeve, if you can believe that)... Ideally, the flat saber primary grind should probably be higher, but then some of that blade mass would be lost... This knife apparently failed to find its market (it is discontinued), and I am sure that's because too few people handled it... When I bought it I was quite nonplussed myself (from the pictures), since I just needed quickly a short machete for a very dense wood I planned to visit... I had no clue I was buying my favourite knife ever...
Gaston