Incorrect. The APXX was available in a 4" coil version long before RD was started. But honestly the benefits of a 4" coil are negated by the suspension limitations of a 4" coil in the 12 spoke basket, which is why Fi (and TC back in the day) uses a different style basket for their 4" coil designs, and why the few RE Destroyer subs that were floating around a couple years ago aren't talked about anymore. You need larger spiders to properly accomodate a 4" coil (same goes for trying to use a 3" spider an on 8" sub, spider limitations)
But even still, george makes RD's subs, so in essence HE came out with the 4" coil HW. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Even with that said, I don't see many people running the 4" coil HW's, probably because of the suspension problems.
There is no "steve does, or steve doesn't". He's not a sub designer, period. Odds are that he doesn't even know the dimensions of his subs (i.e. top plate height, I.D., O.D., etc.), nor what changing those dimensions will do to a subs T/S parameters.
Hell, I remember him posting back in the day that one of his subs had two different diameter magnets because that was how he designed it. In reality, the magnets were just slightly different diameters because that's how it came from the factory. The diameter of the magnets had no bearing on the subs specs or performance. He was just trying to look like he knew what he was doing.
