Two days later and no-one comments on peeps using 'close-to' tolerences resistors in an electrical system? Wow! Maybe I just don't 'get it'? Usually resistors are rated with tolerences as +/- specific ratings, so if you get a set or any within the (-) tolerences range you can overheat em and melt something. Melting things usually means combustible gases present and if the resistor cracks and sparks, well you can see the chain continuing. I try not to increase my risk of distroying things... Food for thought!