Don't worry too much about that...Hammer Station is a bit rough for many groups. The main problem is people are use to simply zerging the instance which can be hard without top gear and a good level ratio to the flashpoint. Crowd control works wonders on many of the rough pulls and good knowledge of the boss mechanics(this doesn't just go for you, but the group) will really cut down on the healing needed. I went in there at level 18 with everything in pyrotech and it wasn't too bad. The pull in the beginning where there are two heroic spider droids was definitely the hardest thing in there with no CC.
