I would be really surprised to see the FED move in September so close to an election and a dangerous market month to boot. They would want to make sure the market was in good shape for a dangerous market month with an election in the US pending.
I expect thme to ease at the coming meeting this week and some further easing measures at the July meeting. The ECB will also be easing this summer along with the UK. China, Japan and most of the G20 nations. This could well be a great summer for precious metal equities and gold/silver. I know for sure I'm going to stay all in as it's hard to see any major downside although a few days of weakness is always possible when dealing with the gold cartel types.
The best strategy, in my view, if you have the cash, is to buy the dips and build your position this way over the coming weeks because no one really knows the timing for sure but it's not hard to recognize cheap shares and value.