Is elliptical the best stylus profile

That depends on what you mean by "doesn't track quite well." If you're stating that most modern cartridges will stay in the LP groove, I'd agree with you. If you mean most modern cartridges can sail through things like all six tracking bands on the Shure V15 Type V Audio Obstacle Course LP, I'd disagree, based on my own experience.

I meant the latter, though not so specifically.  However, I too own the same record and every cartridge I've owned or borrowed over the last 12 to 15 years (which is quite a few...) has passed said tracks no bother.  A suitable arm and proper adjustments was all it required.

The HFN test record presents rather more of a challenge, as only a handful has passed its +18dB track.

The question is what is the highest groove velocity you would see on records and can the cartridge get through it without mistracking. I am not sure what that number would be but I can say that there are a number of cartridges I have never heard mistrack. I do have test records that will make any cartridge mistrack. So what. The heaviest test tracks get beat up so fast they are worthless within just few plays. 

mijostyn

it takes more force to move the stylus of a less compliant (stiffer) cartridge than a more compliant (softer) cartridge.

Intuitively, that seems correct - but you can’t be sure sure that it works that way in practice. You’re not accounting for a pickup arm’s low friction, and that factor must be part of the equation for your assertion to be correct. Stylus profile is another wear factor that your claim overlooks, and you also need to consider the difference between a cartridge’s horizontal compliance and its vertical compliance. There are simply too many variables for your claim to be universally accurate.

The question is what is the highest groove velocity you would see on records and can the cartridge get through it without mistracking.

Not necessarily. Although it's HF that is typically the greatest challenge to accurate tracking, very low frequencies can also be an issue, such as is found on some of the 1812 demo LPs. By definition, low frequencies are low groove velocity.

there are a number of cartridges I have never heard mistrack

It isn’t always easy to detect the HF distortion that is the result of mistracking.

Cleeds, I think you are making a mountain out of a mole hill. Given the same stylus profile and tracking force the less compliant cartridge will wear the vinyl down faster than the more compliant cartridge. Tonearm friction means almost nothing as the stylus is at the end of a rather long lever. 
You are defining groove velocity incorrectly and also remember the RIAA curve. The groove velocity is the speed the stylus is traveling in the groove. It has nothing to no with frequency. It is the distance traveled per unit time. The heavier the modulation, the farther the stylus has to travel, the higher the groove velocity. Linear velocity is the speed the groove passes a fixed point it decreases as you travel towards the middle of the record. (20 inches per second down to 8 inches per second) Now, does the frequency effect tracking ability. I have no idea. The maximum groove velocity you can cut and probably only on the outer grooves is 50cm/sec. If you maintained that speed the stylus would surely start miss tracking somewhere on its way towards the center of the disc. Would a 100 Hz tone miss track before or after a 15 kHz tone. I do not think so as the velocity remains the same but I do not know for sure. Would be a fun experiment. Maybe there is a recording engineer out there who could tell us.
There are a number of cartridges I have never heard miss track. Maybe my hearing sucks and they are miss tracking but I have never heard it. You can masturbate about what is actually happening all you want but the simple fact remains that I have never heard it. Whether or not you trust my opinion is your problem not mine. If I were you I certainly wouldn't:)