studies revealed the Mountaineer G1327 more sturdy than the Systematic
This was explained by the structural "bridge" under the top plate shown above in the detail window.
Differences were more noticeable when under the slightest wind.
differences were further amplified when the Mountaineer had its center
with a Markins TB-30 vibration dampening plate.
This still holds true for new 6X Mountaineer GT3531 vs the 6X Systematic GT3531S
and their respective variations, although the new Systematics have now a thicker top plate.