Some web sources indicate "Logisch" is an alternative name for "Siebenschläfer", but an old topo on http://www.topodb.ch places it between Sprayer and Direkte Briefkästen. Other web sources indicate an unnamed line in this place at 6a.
This climb is in 1 logbook, and on no wishlists.
Ended up aiding at the end of the roof by tension-traversing from an old peg - which saved me from climbing into a wasps nest like my misfortunate second then did. johannes - Lead dog - 19/Jun/05