If you are not planning on installing a PowerFLARM in your gliders, which would give you warning of those "bug smashers" via PCAS or ADS-B/Mode S alerts, you could just get some Zaon MRX PCAS. Portable and cheap (for anything that goes in an aircraft!), they do a good job of warning of transponder-equipped VFR traffic.

Every little bit helps!

Kirk
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