Technically with a 30 CYA until you get more, you are probably ok. Ok doesn't do it for me personally. I'd be targeting where you will be when you reach your goal of 70. In what, a few days tops ? Why dance the dangerous line now.
Treat the minimum, not as an ok thing, but as a Defcon 5 thing. Stay way clear of the minimum. I targeted the high number in the range. I was usually a bit over it by nature of the SWG always producing and I always had free FC to spare. Did I waste some ? Yup. Did I lose one lick of sleep over it ? Nope, and as a matter of fact it helped me sleep BETTER.
Once you get a full grip on everything and you know it backwards and forwards, you can dance that line as close as you want. Until then, give yourself some safety net. If you see how well the safety net works, you may never leave it. I didn't.