Henry,
You are "hoping to get a lot more air and immediacy". The Kharmas are known for not having an over-abundance of air on top, and neitehr does the Lamm (though to a lesser extent). So you will have to 'work' to get as much air as this combination is capable of. When you say that you also want to increase 'immediacy', this may indicate that there may be something else in your system that is suboptimal, sucking away some of the performance that is possible with your amp/speaker combination. Have you tried various vibration isloation techniques with the ML2? Even though Vladimir designs the amps with specific attention to isloating the parts from mechanical vibration - they still benefit from further attention to this tube-component's curse.
As far as the Tenor/Kharma combination is concerned, Tireguy is correct in that this is certainly a very synergistic combination - on par with the Lamm/Kharma combination - but with a different 'flavor'. One of the immediately obvious differences is in the dynamics, both micro and macro: whereas the Lamm, correctly isolated, renders all of the dynamics in a flowing, almost joyous manner, the Tenors render them in an eager and youthful, exciting manner. I am not familiar enough with the Tenors to say how they wear over time with respect to their innate musicality and naturalness - but people I respect have been very, very happy with them. I have also never heard of a Tenor damaging a speaker, and having talked to the people at Tenor who are very competent and detail oriented engineers, I think you can go back to worrying about lightning strikes and rogue vacuum cleaners and those other, numerous, more common audiophile hazards... :-)
Best,
Mike (Lamm dealer)