Are Vanguard Index Funds/ETFs improperly weighted?

[Jeff W]

One last thing: Should I be putting money in a SEP-IRA or do I have less to gain if I use tax-efficient funds and a 100% equity portfolio? I don't love the idea of locking up money for over 3 decades, especially as my expenses could change or I might need to convert investments to cash if I wished to move back to high limits in poker.

I guess I'll have to do some more research/thinking.