This is posted for a Non-Farkiner, One of my mates has a Vp-Free and hes fitted a 5th Element shock on rear, Its started to wobble a little recently, not sideways but when you pick up the seat then drop it like a few inches it moves a little, like just a few mm or cm but ive been told cause the frame joints or mounts have taken a beating? or is it the shock? we have taken the shock and adjusted it, put more air in it etc and it still does it so im guesing its the Frame mounts, but what exactly is it that does it? what joints? ...hes around the same weight as me which is the 85-90 kg mark,...could it be it might not be setup with the correct spring weight like 400-500lb spring? havent had a chance to take it to a LBS yet so any info would help..Thanks