In my understanding, there is only one difference between $MEMO and $wMEMO at the moment:
$Memo price is pegged (to TIME), so you always hold a variable (increasing) amount of $Memo tokens (increasing every 8 hours with rebase) ; and $Memo market price automatically decreases proportionally. As a result, you always hold the same $ amount, except normal price fluctuations in the market.
The only difference of $wMemo: it automatically shows the floating market price for your hodl’d assets with a fixed token amount instead of a variable one.
So, basically; if you multiply your ($Memo amount x price) , it should always be equal to the ($wMemo price x amount).
I’ve been trying hard to understand this shit too, would appreciate if anybody could confirm or correct.