Alrighty, the oil (spray oil with teflon additive) seemed to have quieted the freewheel gear with no load (bike upside down). When it did make the clunk and could feel it upside down, crank arm position made a difference and it was the same findings that I indicate for the actual, real world, test ride.

The test ride under a load, I found that when coasting, crank arm position matters, 11 and 5 o'clock positions, clunky noise and could feel it too everytime (less often when the bike was upside down though), 9 and 3 o'clock positions, it's quiet and no clunk 90 % of the time riding under load. Seems to come and go as it wants, sometimes more frequently than other times. I did notice the rear wheel isn't perfectly true, but not appreciably out of tolerance when the bike was turned upside down and I was lubricating the freewheel gear. I don't think it's the trueness of the wheel, I've had cheap department store 10 speeds that were equally or worse in terms of trueness, that never clunked like this. Then again these flip flop hibs look like some 1/2 baked design for a fixed gear hub to flip flop the wheel so that it does freewheel. That is, a multi-gear freewheel was conceived out of necessity for it to behave that way, whereas this freewheel gear looking thing looks like it was an afterthought to the whole design concept, it almost looks like a counterbalance with a gear on the damn thing. I imagine that a cassette made for a 5-12 gear cassette with all but the lowest/first one installed is just as quiet as one with all the gear rings installed ?

I may just let the man at the shop true the wheel for piece of mind, but somehow, I have to feel the wheel is so close to being true that the difference doesn't mean anything ? BTW, this is a 46/16 setup on a Vilano internet bike with the tec9 components. That's department store level components, I would think they would be not as l33t and heavier parts that work about the same as the higher end components, I know you get what you pay for, but tec9 aren't that bad, are they ?