Placement tips for Synergistic Research HTFs

Todd;
I left a message here yesterday but somehow it never was posted, so here goes again.   I also just got my jkbtn brass bowls and 3/8" copper caps.  I assembled two varieties.  One set, like yours, was pushed together by force.  For the second set I used heavier brass caps as my cone base and superglued them together so the cone sticks out further from the base.
After working around a blown fuse situation I'm finally to the point of testing and comparing my various models. I've also tried various room placements.
I'm going to be very interested in your results since your speakers are different than my Maggie's.  I'm formulating a placement theory but I wonder if my theory might work with Maggie's but not with regular speakers.
Maybe you could try a test for me.
Without any resonators attached, listen to a couple of songs from your favorite evaluation music.  I would like you to listen for the soundstage location and where the vocalist is located?  Also please focus on the upper midrange frequencies and the treble frequencies.
Then add two resonators to the front wall just outside of your cabinet about 3' off the floor & listen again.  Then add a resonator to the front of your speakers and re-evaluate.  Finally, add two more resonators, higher up on the front wall and re-evaluate.
Do you hear any differences?  I'm wondering if your soundstage shifts like mine does.  I also would like to hear what this does, if anything, to your upper midrange and treble.
After that, if you haven't tired of this already, take all the resonators off and try a resonator on the inner side of both your speakers.  Then take those off and attach a resonator to the outer side of your speakers.   Does the soundstage shift?  Do the instraments shift?
I don't want to skew your results by telling you my results right now.  Not to mention, if your results are different than mine, then maybe my results are only good for planer speakers.

Thanks,
Toolbox

Toolbox - will do, though I won't be able to evaluate the sound with the resonators on the wall behind my speakers because of the layout of my room.. there's a doorway directly to the right of my right speaker. I could try a resonator on the door, but the lack of symmetry could very well negate this placement.

I won't have time until tonight or tomorrow. Fun experiment though, I'll happily report back!

@geoffkait thanks! I'll play around with those.

Thanks Todd,
I meant to have you mount them just outside you component cabinet but still between your speakers and inside your wall traps as well.   Looking foreward to your results.

If anyone else what's to join in on the evaluation fun, please do.  Then post a little report.  

I've already finished most of my evaluating on my main setup, and I'm going to try some of this on a second stereo I have.  Unfortunately, my second stereo is placed to be "out-of-the-way" more than it's placed to sound good.

Toolbox

I forgot my youngest has a half day today, so I didn't get to do quite the lengthy listening session I wanted. I used one track that I love (Hazey by Glass Animals) and use consistently as a gauge for the effect of changes to my system.

Here are my notes (never took notes while listening before. Interesting):

None: soundstage extends 30' back, 25' wide , vocalist is 15' back

HFTs just inside speakers: treble is more crisp, better separation of sounds, vocalist further back 25-30' now, soundstage and center are elevated, mids are smoother, soundstage isn't wider, but seems more open

HFTs as above+on front of speakers: more clarity in highs, sounds extend out into the room, widening of the soundstage by 10', soundstage shifted forward-vocalist is 20' but the whole soundstage begins well in front of the speakers now and seems to float in the room. Mids are not much different than above.

HFTs as above+2 higher on back wall: vocalist is back to 25-30', soundstage opened upwards as though a low ceiling were replaced with a big dome, width did not change. Treble seems a bit more relaxed, less in your face, like it has more room, mids seem slightly smoother.
HFTs on inner side of speakers: treble is reduced from above, mids more compressed. Soundstage is deep, vocalist is back 25-30', but it's narrow and barely extends outside the speakers. A mild tunnel effect (without reverb, of course).

HFTs on outer side of speakers: highs are very detailed and spacious, mids more open, very wide soundstage extending well outside the speakers. The depth hasn't increased, though, so the soundstage feels stretched out horizontally. A translucent wall of sound effect.

I'm sensing a pattern..