In this logically impeccable form, the scheme killed off interest in the classical languages so effectively that it had to be modified. (religion-online.org)
When you use impeccable form, planks are more challenging but also more effective. (cathe.com)
If you want a good debatable article then here's a topic for you gunners «Given Bellerin's impeccable form at right - back should Debuchy be handed that position back to him without a fight on his return from injury?» (justarsenal.com)