How much weight percentage are you putting between front and back foot at speed?
About 70% front 30% back
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Hmm can you feel where the wobbles were coming from? Front vs back
Nearly always the rear. The only time I had the wobble come from the front or both trucks is when I had issues with my kingpin being too loose
Whatās your bushing setup? I think the lacroix are 30r 35f but im no expert. I have a lacroix naz deck with matrix3s and the softest bushings risers but no wedges. I can comfortably hit the middle 30s but stay out of the 40s by design. No spring chicken here 
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on matrix ii it was riptide adapters 70 front 75 rear, 30 degrees all around - felt pretty good but board topped out around 27mph on full charge
on bn310 i tried 30/25 angles with 70 front 80 rear and 33/18 angles with 70 front 80 rear. Started to get uncomfortable around 28-30, and really challenging to tame around 33-35. Highest I pushed it was 35. Didnāt push speeds again after a wobble put me down at 33.
This is all with bindings which give more leverage and on the haero bro deck which is fairly short.
It was all setup for basically nearly dkp turning radius, as I am racing a lot of short track and I really need to make tight turns.
The tito dualities that I changed to recently allow me to have a lower final ride height (deck nearly inline with the axle) plus they are inherently very stable by design. And with soft bushings and bindings I have a really good turning radius even at 25/10 final angles. They lean much deeper and turn exceptionally well. So well that I dewedged the 30/15 standard setup to 25/10, and I am still kinda close to dkp turn radius if I have a little bit of speed going into a cornerā¦ But itās wayyyy more stable and confidence inspiring compared to any of the other setups Iāve stood on. And the ultra deep lean feels really good.
With these super low angles obviously I need to lean in to be able to turn, so very low speed turning (under like 6-7mph) suffers a bit.
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Ahh yeah I do not like the bro deck for speed at all. Too responsive with the tips imo. Probably great for track.
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Ah, alright, that actually gets my hope up a bit because I am changing away from the bro to a longer tomiboi deck soon thatās gonna have a lower ride height as well. Little nervous about the lost steering, but pretty excited for the wider stance to handle all the power I have and the mid-long track performance. And probably I can find a way to get that steering back for short track still. Iām at 0.7G acceleration at the moment and I am actually going 4WD in order to have front brakes as well, which will result in just over 1G acceleration on the new setup.
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Iāve had really good luck with split angle channels (35ā front and 25ā rear). My 12s Flux could cruise at 32-33mph easily when I was on MBS M2 trucks. Then I upgraded to 18s voltage and BN channels and can easily cruise at 40-42mph without any stability issues.
Iād appreciate your thoughts on how the below truck angles would compare:
Front 30 / Rear 30
Front 40 / Rear 15
assuming identical bushings are used.
On the symmetric setup, for a given lean, both F and R contribute equally to the turn. On the split angle setup, F contributes more to the turn. Turning radius may be similar between the two. One may say the split angle is more stable against rear-initiated speed wobbles.
Would the force needed to lean the deck be similar between the setups? On the split angle setup, the F would be much āstifferā than the R, but as long as your deck is not noodly, would the ātotal stiffnessā to lean the deck be simillar between both setups?