My work out partner dropped his bottle of TEST E and it broke - so now - hes at week 6 and needs to take a week or maybe 10 days off waiting for another one. Is that ok? Will he feel any sides? Or feel like he lost anything? Also - I have a little left - maybe two shots worth...can he use mine if its not same brand as what he used before and will be using again? Thanks to anyone that can help.