No, I've never seen a cable stretch and he's saying he doesn't see shaft movement.
BUT, what have I seen?? I've seen people install either the kicker shaft itself incorrectly or the decompression piece splines smashed over the wrong spot on the shaft as well. It can be done, I've seen it...
So, 1st off, make sure the shaft is correct and from what you said, it is correct. So, next is the decompression cam, is THAT dot in the correct spot?? Like I said, I have seen it done incorrectly a few times and I recall you having some kicker shaft issues awhile back.
That decomp cam will only slide over the kicker shaft SMOOTHLY if it's in the right spot. With the cover removed, that cam should press up against the spring and bounce back and forth with your fingers, or it is installed wrong.
If ALL of that is correct, the only other issue is the freeplay at TDC on the compression stroke. Honda calls for a VERY ODD 1/14th of an inch. I usually call it 1/16th and it works great.
Go over all your stuff, and make sure your at the right point to adjust that "1/14th" and you'll be fine. There are no other possibilities...
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country