Kids grown out of ski school - ideas??

My kids (9 and 11) have reached the far ends of the ESI ratings and now most often enjoy just blasting around the mountain esp off-piste and doing jumps and so forth.

They're way too high octane for me and Mrs Time - they just get bored with our sedate pace down the reds, so while it's great to ski with them for a few hours each days (not to mention spring for a fat lunch).... Does anyone know of a ski school or company that offers more of a 'guiding' service for very competent skiers, as opposed to lessons? I'm looking for Europe, not N America.

Thanks for any pointers!!