SET vs Push-Pull (Line Magnetic vs Primaluna)

Thank you for all your responses!
The feedback from the community is quite helpful. 
I thought I would provide more detail about my listening environment.  The room measures 20x24x9.  The 24 dimension is because the room is open to a staircase and a hallway.  The listening area is more like 20x16.  The speakers are about 9’ apart, and my listening position is about 9-10 feet from each speaker.
My average listening level, measured  at the listening position with a decibel app on the iPhone, measures 70-75 dB, with peaks rarely above low 90s.
I agree that the best way to make the decision would be to arrange an in-home demo.  This may not be possible, so I might have to take a trip to the nearest dealer (2hrs away) and make a leap of faith.
In the mean time I’ll probably change the output tubes in my PL from EL34 to KT150, just to see how that sounds.
Thanks again!!

You’re not doing bad with your PL upgrading your power tubes. Start with KT-88’s. Psvane or even Gold Lion tubes are fabulous. 

@making,
At your typical listening levels of  70-75 db at your listing distance you are not even using 1 watt of power, just fractions of a watt. Your listening levels are very comfortable and satisfying for most anyone not suffering with a hearing deficit. I hope you get the chance to hear the Line Magnetic 805 output tube based amplifiers and compare to your push pull PL amplifier.

Charles

If you were looking to get closer to SET sound, move to KT will be move in somewhat opposite direction, imo. I prefer the  EL34 house sound to KT 88 in my PL Dialogue Four. KT presents as more precise sound, less euphonic. PL amps are in modern sound class of PP, KT put it over the edge in my system. With change to KT I'd expect you'll get better bass control and extension, greater treble extension, but you'll lose a bit of the EL34 mid range magic.
I don't know which EL34 you're using, but the best I've heard are 1990-early 2000's Svetlana and/or SED. I presently use  SED Black Sable (early 2000's, cryo'd and closely matched limited production), really not that far off SET sound with these tubes. Present production Svetlana is not the same tube as these, ones I'm talking about are now sold as vintage.
Still, do try the KT, although I'd suggest the KT77, seems many prefer the lower powered KT's as best sounding.

@mabonn 

You could give Mike Rose @ Excel Audio on Newport Beach a call, where he carries the Line Magnetic line, and he may have some ideas, but it is a bit of a drive.