force spotify to stream synced songs

[jgavagha]

So its nice to have my spotify songs synced for offline use, however i dont want to take up the space it requires to sync at the highest 320kbps bit rate. I also dont want to stream at that rate when im using data though. Is there a way to force spotify to stream songs that are downloaded like when im on wifi so i can get higher bitrates but without having to have those downloaded? 

Basically i want to be able to stream songs that have been synced locally to get a higher bitrate without having to sync the highest bit rate files and using all of my storage? IS this an option? if not i definitely reccomend this as this was something i always wished for.