Staveley Wriggle

The Staveley Wriggle is a bidding convention after your side has opened 1NT and the opponents have doubled for penalty. It uses natural responses except for a "multi"-like 2 response that either shows clubs OR one of several different two-suited hands.

Partner Opp 1 You Opp 2

1NT X ?

Partner Opp 1 You Opp 2

1NT Pass Pass X

?

After the opposing double, the "wriggle" bids are:

Pass Natural, weak.

XX Natural. Shows a good, balanced hand interested in playing 1NT redoubled.

2 Shows one of the following hand types:

4+ clubs, natural. May be 4432 or even 4333.
A two-suiter in diamonds and hearts (at least 4-4).
A two-suiter in diamonds and spades (at least 4-4).
A two-suiter in hearts and spades (at least 4-4).
Partner is expected to pass 2. If the opponents pass too, then you're playing 2 whether you're in a 2-2 fit or not!
If the opponents do double, then the 2 bidder can either pass (with clubs) or show a two-suiter:

Redouble shows diamonds and hearts. Partner must bid 2 or 2 (the latter with longer hearts).
2 shows diamonds and spades. Partner passes with diamond tolerance, or corrects to 2 with longer spades.
2 shows hearts and spades. Partner passes with heart tolerance, or corrects to 2 with longer spades.

2 5+ diamonds, non-forcing.

2 5+ hearts, non-forcing.

2 5+ spades, non-forcing.

The 2 bid is pretty creative, but what I dislike about the Staveley Wriggle is the inability to show clubs + another suit. Most escape systems can't show a weak 4333 hand, and the Staveley Wriggle is no exception. But it compounds the problem with its inability to show any 4432 distribution that includes 4 clubs.

Origins

The Staveley Wriggle originated in the UK, where a "wriggle" system for 1NT-doubled has the same meaning as an "escape" or "runout" system in the U.S. You say football, I say soccer. I'm guessing it was named after a bridge player named Staveley, or perhaps even the town of Staveley, England. Please email me if you know its origins.

Pass	Natural, weak.
XX	Natural. Shows a good, balanced hand interested in playing 1NT redoubled.
2	Shows one of the following hand types: 4+ clubs, natural. May be 4432 or even 4333. A two-suiter in diamonds and hearts (at least 4-4). A two-suiter in diamonds and spades (at least 4-4). A two-suiter in hearts and spades (at least 4-4). Partner is expected to pass 2. If the opponents pass too, then you're playing 2 whether you're in a 2-2 fit or not! If the opponents do double, then the 2 bidder can either pass (with clubs) or show a two-suiter: Redouble shows diamonds and hearts. Partner must bid 2 or 2 (the latter with longer hearts). 2 shows diamonds and spades. Partner passes with diamond tolerance, or corrects to 2 with longer spades. 2 shows hearts and spades. Partner passes with heart tolerance, or corrects to 2 with longer spades.
2	5+ diamonds, non-forcing.
2	5+ hearts, non-forcing.
2	5+ spades, non-forcing.