This alert is viable for all arken optics. EP5, Sh4 gen2, LH4, EPL4, EP8.
Keep in Spec at 18 inch pounds and space your rings to give bit of room away from the turret and side focus mechanisms. The clamp pressure is influencing the shape of the main tube..

UPDATE: Arken has reached out and suggests 15 inch pounds on LH and EPL models.

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