Shift kit AND manual valve body?!

Johnny Mac said

a full manual valve body completely negates anything a shift kit would do. there is zero auto function of any kind. it holds a gear until you shift it, and bang...it hits the next gear.

installing a shift kit in a FMVB trans would be like putting lightweight springs in a distributor, before you welded the weights open.

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Makes perfect sense. I guess the question should have been "is there anything other than the valve body that can improve lazy shifts". I was hoping there was an average-joe-can-do-it-in-the-garage solution, but it sounds like my valve-body should be giving whiplash so I might have some clutch/band wear. I don't know exactly how many runs are on the transmission, so it looks like having a pro go through is getting added to my list.