Vintage Simmons Drums (UK) Users Group

Hello everyone,
Just a quick question to anyone who has time to answer - does anybody
know any details about the work that Simmons did with Rick Allen from
Def Leppard after his accident? I recall reading that Simmons and
someone from Ludwig helped construct a kit to adapt to his new playing
style. I also remember hearing that Akai were involved, so I was
wondering if SDX technology was used or if the work with Akai inspired
the SDX. Information is sparse, which seems a bit ungrateful to me, if
Simmons did help the guy go on to sell however many gazillion albums.
Also I wonder if it is what inspired Simmons to move into the
prosthetics research. I am not a huge Def Leppard fan, (and I
apologise if I offend Mr.Allen in any way), but you can't question
their success and I am a fan of the SDX. One was auctioned on e-bay
about a 18 months ago, when I had just returned to the UK - I didn't
bid for it and I think it went for less than GBP400 - I was gutted!