Very interesting Daniel.

As a matter of interest, have you checked out Dutch Pinball's incredible upgunning of BOP?
I asked them a Question in their guestbook a month ago, but no reply 
Would you personally consider their system if it became available?
Sadly, I don't have a BOP -  only framed BOP & Jackbot translites next to each other on the wall.
If these wizards in the Netherlands ever produce a conversion package, this may have to change.

PP