Questão jurídica principal
Whether the cantonal court violated federal law by using a sector-specific wage from 'personal services' to determine invalid income.
Decisão extraída
The court could exceptionally rely on the average wage of the relevant sector because the insured had only worked as a technician and could plausibly use his residual capacity in personal services.
Fundamentação extraída
Where justified, a specific sector or branch wage may be used under the LSE if it reflects the realistically exploitable residual earning capacity; the cantonal findings on past work and feasible activity were binding and not manifestly incorrect.