Controlled Group SH401k w Cross Testing, All Employers Covered

[cheersmate]

Please confirm the compensation earned from all members of a controlled group of businesses is aggregated for purposes of allocation, coverage, ABT and General Testing.

Facts:

LLC (single member, taxed as S-Corp) sponsors a Safe Harbor 401k with Discret PS features. The LLC controls all plan provisions. There are several nonHCE covered by the Plan in addition to the "owner"

C-Corp (owned by same person who is Member of LLC) adopted the LLC's Plan, follows the LLC's provisions as stipulated, is a "participating employer."

Suppose for this question the LLC Member's elig compensation is $50,000 and his/her C-Corp is $100,000. Total earnings $150,000.

1. Is compensation for purposes of SHM $150,000, irrespective of which source of income (LLC or Corp) it was deferred from, meaning if the 401k deferral is deferred from the LLC source, wouldnt you still determine the SHM on the aggregate of both compensation sources? In this instance, the SHM w b $6,000...
2. Further if the Corp fails to contribute its proportionate share of the SHM, the LLC will (be forced to contribute it to satisfy the SH) and can deduct it?
3. Is compensation for purposes of the PS allocation $150,000? Deducted by entity who contributes it, correct (Same as above)?
4. Further if the Corp fails to contribute its proportionate share of the PS, the LLC will (be forced to do so) and can deduct it (subj to 25% limitation)?
5. For purposes of the ABT and Rate Group testing, the aggregate compensation is used for the Accrual Rates, correct?
6. For determination of HCE status, aggreg is used?
7. Each entity tests based on its compensation for 25% deduction limitation?

Thank you