Thank you psarkissian for the fast response. I appreciate the advice and I agree with you that bigger diameter and higher temperature rating is better. Would you happen to know what are the ratings of the original power cord that came with the Flextone III XL? I also wonder what are the ratings of the original power cord that came with the Vetta II, if you know. Also, does the other markings matter, like SVT or SJT etc. Thanks!