Great bass from a linear tracking arm?

As expected there has been a lot of discussion of linear trackers that use air bearings.
What about the offerings from Clearaudio that use gravity, wheels, and tracks? I've read about some of the operational problems that one can encounter with these but what about the sound? When everything is working well are these comparable to the very good air-bearing designs?
Clearaudio

I heard very fine bass performance with ALL the ET arms my friends ran.We(me) are talking about different degrees of "really good".
I have a very good unipivot,and can fine tune "the heck out of it",thanks to what I heard on my friend's Air Tangent,which caused me to try to duplicate some of what I liked,there("some",only).I never felt the need to do so,until I heard so many of my LP's played on my pal's maxxed out A.T.Try the Penderecki Harpsicord Cto,on EMI to know the meaning of "drop dead dynamic/huge,juicy scaled stage",(or the soundtrack to Rashomon)on a pivot.Then play it on a maxxed out linear arm.Case closed,no matter how much rationalizing one cares to do.I wish it was not so,but it IS!!
Prior to that,I thought I was happy.But I will never lie to myself,to rationalize something I own,if I have heard otherwise.Of course I always tell myself that the tubing runs,and pump maintenance would be a bit much,but my friend's really did not work too hard once everything was installed.So now I am rationalizing that I don't want to send back my armboard for re-drilling.TOO much wasted time.Of course I admit to lying to myself,here!The linear arms I have heard(the Forsell is GREAT too,but a bit flaky,and NOW really rare)have something the pivot crowd will not be able to hear,no matter how good(and many are fabulous)they may be designed,or carefully set up!
BTW,the NEW Cartridge Man Parallel Tracker seems to be of a very high quality,and is nicely(fairly)priced.This looks to be a really good design,and has gotten some very good feedback.
I can only speak of the linear arms I know well(E.T./Forsell/Air Tangent),and don't care to spout techno stuff.The practical advantages of a "really good linear tracker" is easily heard,and I wish I had the spare time to screw around with one.
Still,there are a load of very fine pivots(no surprise there),and I am quite intrigued(not that it means anything)with the Dynavector arm,which seems to be kind of a bridge between the pivot,and linear,in some ways.
Perhaps some of the more technical oriented hobbyists could elaborate,here.I PROMISE I will never be a contrarian again!!!!
Best!

I thought the CA designs were even more limited when I heard them.

A person I know who currently owns a number of Airtangent arms (though not the current '2002' model) says that the key to great bass is not higher pressure but a light cartridge.

...says that the key to great bass is not higher pressure but a light cartridge.

I use my Kuzma Air Line for a while now and I tried various cartridges with it. Mainly those, I know very well from Phantom or DaVinci and I am still learning.

The lightest Cartridge I have at the moment is the Zyx UNiverse and it works absolutely excellent on the Kuzma. I am really impressed, there is no big difference - or no loss - to the Phantom or DaVinci. Bass is great on classical records like Stokowski- Hungarian+Roumanian Rhapsody.
I would rate it as a real killer combo.

When I use the heavier ones, there is definately a change in performance. Don't know why (yet).