I used safale04 to brew an ipa. After 7 days it had reached the estimated FG and had stopped bubbling for 3 days before. I thought, no problem I'll stick it in the secondary and dry hop it. So I put an oz each of centinnal and columbus into the secondary. 2 days later it took of and hasn't stopped bubbling since. it has slowed down the last 2 days. Is this normal? If I wait longer to bottle it will the dry hop make it taste off? All comments appreciated.