I bought an EVOD starter kit 2 weeks ago and the coils it had in it were 1.8 now I need to put a new one on and I noticed the 5 pack of replacements I bought are 2.5. Can somebody tell me what difference this will make, if any? BTW I upgraded a little at a week in with a 1300 VV smoktech battery. Is there a voltage difference with the higher ohm coils? Thanks!