This was polled just recently and below are the results.

""""October 29, 2012 12:28 PM
Percentages usually do not add up to 100% because multiple selections can be made on many questions. Also, some questions
are not answered by all survey submitters.
Analysis Categories All
Summary of detailed data representing All respondants. 187
Part I. Equipment
1. Cloud flying instruments
For many years we have prohibited gliders from "carrying any instrument which: Permits flight without
reference to the ground." (6.6.1) In practice, this has meant that gliders may not carry gyros or Bolhi
compasses.
Now several navigation instruments sold to the glider market include artificial horizon displays. Some
cellphones and tablet computers also include such displays, though of questionable reliability. An
artificial horizon is now essentially a software switch on existing instruments rather than a whole new
instrument.
This year there was a substantial discussion about this rule. Briefly, advocates of removing the rule
feel that there is a safety advantage of allowing artificial horizons as a precaution in case of
inadvertent loss of visual reference. Supporters of the current rule feel that truly inadvertent loss of
visual reference is unheard of in contest flying, and the temptation to intentionally fly in or through
clouds or rain too strong with such instruments present. Allowing such instruments would also lead to
greater suspicion that others are cheating and foster an "I have to do it to keep up with the
competition" mentality.
All
a Do you favor removing the ban on artificial horizons?
RemoveBan 31%
LeaveBanInPlace 68%
b The RC has developed a protocol, whereby if a computer or vario with artificial horizon option is
installed, it must be possible to verifiably disable that option for the duration of the contest. (Please see
Restricted Device Policy) This policy requires some programming from manufacturers, and some
manufacturers have been reluctant to do it.
Do you support this policy? (If not, suggest an alternative!)
Yes 71%
No 27%"""""

Best. Tom #711.