One other thing you should consider getting (unless you have another device such as a multimeter) is a carto/atty tester like this:
Meters : Cartomizer and Atomizer Ohm Meter
This is very useful for measuring the ohms on your coils, and to test for a short (a short is what typically causes the spring in the REO to collapse).
Meters : Cartomizer and Atomizer Ohm Meter
This is very useful for measuring the ohms on your coils, and to test for a short (a short is what typically causes the spring in the REO to collapse).
