at my performance level I doubt it makes a difference & I find it really annoying how small they make those arrows & often it's black on black embossed. I now have to wear "readers" to find them. & since I sometimes have to do a roadside repair I now have to carry another pair of readers in my trunk, another thing to wrap for protection, ugh. on at least 2 sets of tires, I drew a big freakin arrow with a wax pencil & also the tire pressure on the sidewall. I'm not proud

in this case, looks like I did it twice, first w a sharpie marker, then again with the wax china pencil



& with this tire I reminded myself what size it was & what pressure worked on the frame I usually use it on