Could anyone advise the current situation in USA, Canada and Europe regarding the grounding of L13 Blaniks ?

Have many been put back into service as a result of satisfactory wing spar inspections, or do most remain grounded due to the fact that the required average usage statistics required by LET cannot be met, and with respect seem most unreasonable.

For instance – what two seater training glider (or for that matter any two seater glider) would have an average of 35% dual and 65% solo usage! More likely, greater than 80% dual would be a more realistic figure I would have thought.