I think pulling with a void at the 2 level is normal, I would probably also pull 3Cx to 3D with a 6340 too. I prefer that my partner can X agressively with some 4 carder and that I need a stiff to be able to pass vs then the double is unilateral. If im in the penalty seat with 6 ill have to pass (never happened). In both case this aint a big deal since preempting with void are rare anyway (in my style its a drawback but not a dealbreaker).
Returning to Hampson redouble and to simplify im going to assume that the preemptor never has 4 cards or a void. If we use the same delimitation point with 2 or 3 you double in standard and with 1 you pass, vs the otherway around the difference is that 2-3,3-2 & 3-3 in standard is going to be doubled or pulled, while in Hampson its going to be doubled or passed this seems to be an edge for Hampson.
However when its 1-4 or 1-5 its doubled or passed in standard while its doubled or pull in Hampson, and of course you get the same game try XX available.
In the rare 2-2 case its going to be pulled in standard and pulled or passed in Hampson. Hampson style seem to allow for light redouble with a fit at cost of defending when you shouldnt when its 0-4 on some hands.
Kranyak did give an explicatino but im not really sure about what hes saying.
Quote
it applies when a preemptor opens at the two or three level (i guess should be applied to 4 level as well) and it goes dbl rdbl and then a bid. the main advantage in my mind is that when you preempt it's unlikely to have a kjx,kqx on the side (or a four card suit that they bid for that matter), so it let's partner know whether or not he should play for penalties, bid at game level, or bid at slam level. i would even play it at 2s - (x) - xx - (4h).
Does he think that X by preemptor show at least KJx in standard ?
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."