I would suggest that you take 1, wait for 90 minutes to see how it affects you, then take another at the 2 hour mark if you are not feeling it enough.

My GF took 1 of the capsules I made from 1/8 mids and she felt good for several hours. The 1/8 mids made 24 capsules.

Doing the math:

3.5 gr = 24 capsules
3.5 gr /24 caps = .146 gr/cap

In your situation:

.7 gr = 4 caps
.7 gr / 4 caps = .175 gr/cap

I would not take more than 2 at any time, unless you have a lot of experience with edibles. Be sure to come back and post your story of what happened. Good luck and have fun!