I am sure they will be fine. I Have used Interfit Products before but I would recommend getting some Umbrellas to give you more options but don't buy Interfit ones as they are over priced for what they are. I am sure you can pick a couple up on e.bay for around £ 5.00 each which are just as good.
I would also recommend getting remote triggers as the sync cables are a pain and constantly get in the way.
Hope this is some help, Regarsd, Dave
