Not that I disagree with that ratio but I'm not doing that.
I hear more people use 5%-10% on alts. (initial value)
As the price rises they often cash out to keep that % (or maintain a certain percentage.)
That said I do feel like Monero is worthy of taking a bigger risk on as I have more than a strong feeling that many early
BTC adopters see what is happening and they want to up the ante with XMR.
IF XMR is showing this kind of strength with BTC relatively down, I can only imagine where it goes once BTC turns upwards.
My guess is from .01 BTC or .02 BTC on the lower end, to .1 BTC on the extreme high end.
So, being that we are in the .003-.004 range, a higher % of BTC in XMR is a decent chance to take.