BLE GPS data more decimal places

[cbis99]

I am using the Bluefruit LE Friend to get GPS location data from my I-Phone using Bluefruit connect. It works good but I saw somewhere that the longitude and latitude data is good to 4 decimal places. I would like to get more accuracy. I see in the "packetparser.cpp" the program uses "parsefloat" function and assigns the vales as floats. Could the be written as double variable instead to get more decimal locations and accuracy? Could parsedouble be used or something similar? Thankyou