First of all, realize that for 95% of the edge length, the tanto is not necessarily any different than a drop point. Other than the tip, which is stronger depends strictly on the grind.
When people talk about the tip of the tanto, they usually are talking about the secondary grind, which puts a lot of metal up front. Generally speaking, more metal at the tip means more strength, but less penetration. It's a myth that the dual-ground tanto is great at penetration -- in actuality, it is one of the worst penetrators you could possibly design. What the dual-ground tip buys you is tip
strength, so if you're trying to penetrate through something very hard, a dual-ground tanto's tip might stay intact where a standard drop-point tip might get damaged. But through anything softer, less metal up front penetrates more easily.
But of course, there's no law against taking a standard drop point blade, and dual-grinding the tip, tanto-style. At least, I hope there's no law against it, since I have a folder that Allen Elishewitz ground for me with exactly that style, at my request
. It is a drop point blade, with the secondary tip grind. There is no reason for me to think that my dual-ground drop point has a weaker point than any tanto. But the dual-ground tanto has the typical drop point advantages -- a dropped point for tip control, and a belly.
In the end, I found that the extra tip strength in my dual-ground drop point was unnecessary. Furthermore, it hampered penetration, and I decided that I'd rather have better tip penetration than bad penetration plus an unnecessarily strong tip (that's for my uses, yours might differ).
Anyway, my advice is not to get too hung up on the tanto shape itself and concentrate on the grind. I mean, if the tanto shape and grind is exactly what you want, then by all means go for it. But if you want a more utilitarian shape, like a drop-point, but you simply must have a bad-penetrating but extra-strong tip, I'm sure you can find a custom maker who will grind you exactly what you want.
Another strategy you might take is to look at different materials. If you want a utilitarian drop point shape, and you want good tip penetration, but within those constraints you want the absolute strongest or toughest tip you can get, consider upgrading the steel. If you were going to go with ATS-34, you can keep the exact same design and upgrade to A-2 for a stronger tip, or (apparently) 3V and a stronger tip still.
The moral of the story: Consider going with the most utilitarian blade shape, and modifying the grind or materials to get you where you want to be.
Joe
[This message has been edited by Joe Talmadge (edited 06-10-2000).]