A few thoughts on physical Gold, Silver and the "Alt-Metals"

I've always been an alternative investor by nature. I started investing in Gold and Silver seriously about 10 years ago and its been a long interesting ride. In my precious metals stack, I have about 60% Silver, 30% Gold and 10% of a mix of Platinum, Palladium and yes, Rhodium.

I have a few Rhodium bars that are now available from Pamp as well as from the Baird Mint. I bought them last year when Rhodium dipped below Platinum around $800 (it is currently around $1,700) I also bought Palladium/Platinum and Rhodium in ETF form at that time in my IRA. This is pure speculation mind you but my reasoning on Rhodium is as follows:

Annual production is very small, only 30 tonnes per year and very little is stored above ground.
80% of the mine production comes from 1 country, South Africa (not exactly a stable mining jurisdiction right now). The rest comes from Russia and a very small amount from Canada and the US. Any major supply disruptions from South Africa or Russia and the price will continue to go up...potentially violently.
There have been several times in the past 30 years where the Rhodium to Gold ratio crossed near or above 10. I'm looking for something similar to that to happen again and if it does, that is when I will trade it in for gold (or silver). Trading in 5 Rhodium bars for 50 1oz Gold coins wouldn't be one of my worse life decisions.
Looking at the long term charts, the spike highs are getting higher and the spike lows are getting lower