
This article is from the General Pinball FAQ, by Keith Johnson keefer@access.digex.net with numerous contributions by others.
The rubber band in the jet bumpers was removed during the production run.
Starting at the IFPA '93 tournament (== L3 ROMs), games no longer had the
rubber band in there. Though it protected the ball from left drains very
nicely, balls coming from the Powerfield would tend to bounce of the band
into the center drain! The latter was deemed worse than the former, so out
it came. Any game that shipped with L-3 roms and later does not have the
rubber band in it. Some prototype machines may have newer ROMs in it, which
would explain why your machine (with, say, L-4 ROMs) has the rubber band.
For those of you that haven't seen the rubber band, it looks approximately
like this:
O O (The O's represent the jet bumpers.)
\
O
 
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