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Yeah lets think about the Phrase " Non rear-ward moving travel. Hence a forward rear wheel path, as the bike compresses the rear wheel is shortening the wheel base by travel towards the frame, meanwhile the fork is doing the exact same thing but in a good way, so the wheel base is growing and shrinking constantly which will slow the bike down in bumpy sections. Imagine if your fork had a "non rear-ward moving travel", aka a 105 degree head angle(inverted), now forget about the steering, but imagine how it would absorb bumps, that's essentially what pivoting around the...

I think you have the wrong approach! using a shock to counteract a flawed pivot placement design sounds pretty dumb to me. Why not have a properly designed pivot location in the first place. Also no matter how good your shock is it can't change the crappy rear wheel path created by this pivot location.