I flew with the LX1600 last season. Most of the settings have to be
adjusted on the iPaq. This is either a pro or con depending on how you
look at it. One major benefit if you have a glider with 2 sets of
wingtips is its much easier to change the polar than on the B50. On
the B50 you have to open the case. Both are very good as far as the
vario goes. Having flown with both the LX and the B40, I prefer the
digital meter of the LX over the Borgelt analog meter.

The LX has its own final glide functions that you may find useful. Its
best to use a Colibri with the LX, where a Volkslogger would probably
be your best choice for the B50. This also might influence your
decision.

Kevin