Electric Vario Suggestions?

I searched back a few years in rec.aviation.soaring to see if this
topic was covered before. If so please forgive me.

I am looking to replace my mechanical Winter vario with a electric or
electronic vario. Any suggestions?

Also, which do you prefer;

1) The mechanical/electrical versions such as a Borgelt B40.
2) An electronic version such as the Tasman V1000.

Thanks, John