Hi Doozy,
It’s ok to post and add stories manually while Jarvee is working.
A wise precaution would be to have your Jarvee server or proxy in the same city as your client so you are not jumping countries or post codes on the account.
Don’t do the same actions in Jarvee and manually, i.e. don’t like, follow or unfollow in Jarvee and manually. This is likely to cause trouble.
Disclaimer: nothing with IG is 100%! Try the above with caution and monitor closely, you may have a different experience to me because of location, proxies, account history, etc, etc …
Hope that helps.