so im making an aloe vera plant. and im following this tutorial. https://youtu.be/iV53cBE3Wl8?t=453 on this time stamp the guy uses a curve modifier to make the thorns. in his video the cones are perfectly in shape.
I’m not that familiar with modelling in Blender using that method - but I have found you can run into issues if you have unapplied transforms on the model you are trying to manipulate using modifiers
To see if this is the case, select your spike model and go to Object–>Apply–>All Transforms
Select the curve, go into the curve settings and try to uncheck “radius”.
Alternatively, keep radius checked, select the curve and go into edit mode. Select any point of the curve and press alt+s to change the radius of the point (this allows the objects to be scaled differently in each part of the curve).
The spikes in the tutorial actually seem slightly deformed to my eyes. I think yours look different because you are modeling at a different scale.