I have a mini tele also. Also have big hands and have broken balsa getting the battery out.
Tried a 1300 mah and it was still tail heavy so I went to a 1800 mah. I need to install a tray as I was using velcro on the curved vottom and it was coming loose in flight and shifting the cg. What do you guys use to cut out a hatch? Exacto, mini saw, coping saw, dremel? I also had to use low rates and expo to calm down the twichyness this model had. Using a 8-6 prop on a axi 28 series.