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If the mounts are actually sliding, the bolt isn't doing its job, you may as well take the engine mount off as the bolt's going to loosen up soon enough as the bolt hole goes egg shaped. And the actual resultant bolt tension from decreasing 2Nm will vary wildly depending if there's lube, loctite, anything else on the threads/bolt head, a new or used bolt, etc. etc. The ENTIRE bike is flexing, from rear tire knobby all the way to front tire knobby, and everything in between. I mean just about everything: Tire, tube, rim, spokes, hub, bearings, axle, swingarm...

This whole flex stuff cracks me up.... if you really want to see if you can notice a difference, take a friend and have him randomly swap out motor mounts in between motos... have them cover with duct tape so the rider cannot see what mounts are being used. repeat for 4 motos, then do the same time at different tracks- have the friend take a log book where the rider is blind from the mount being used and note down the handling differences and get back to us with the unblinded data. LOL. I once read at the peak...

Between your comment and what Bruce372 wrote, you summed up my thoughts very well. The average novice guy who rides every other weekend doesn't even check his sag but once or twice a year and many of them don't check their tire pressure before every moto, if they do at all when they get to the track.

Apologies if I was coming across as a dick. I've become very skeptical in life lol