monitor calibration?

[dioxholster]

i basically used the icc file from http://www.tftcentral.co.uk/articles/icc_profiles.htm which is much better than what came on the disc, but i turn off its gamma adjustment because its too red while the rest seems to do okay. anyway the gamma now when i test it using this site http://www.lagom.nl/lcd-test/gamma_calibration.php#gamma-test-2.png i get it at around 2.5 (blue being 2.6) and not at recommended 2.2. is this a big deal?