Built a CPF retirement calculator — want feedback from this group!

Been using spreadsheets for years to track my CPF retirement projections and got frustrated that no existing calculator models the CPF rules accurately. So I built one.

What it covers:

• CPF OA, SA & MA projections with your actual balances
• Correct overflow logic — MA overflows to SA first, then OA once SA hits FRS
• MA balance keeps compounding beyond BHS (most calculators cap it wrongly)
• CPF LIFE monthly payout estimate based on actual CPF Board rates
• Full wealth breakdown so OA isn't double counted
• Inflation-adjusted retirement goal
• Retirement Readiness Score

Would love feedback from this group especially — you guys know CPF better than most. Is there anything I've missed or got wrong?