What they don't know about tape calibration isn't worth knowing.
Read their papers until you understand calibration, and buy the correct calibration tape for you.
OR, alternatively, let somebody else calibrate.
Normally, the first place to go would be Quantegy's website, to read the tape specs, but that site now suddenly only is the front page and nothing more.
I mailed them once two years ago because they had a bug in one of the specs, and they said they were in the process of making a new website. I can't say the new one is an improvement.
You can find "short" custom 2" alignment tapes made by MRL labs at www.audiovillage.org for $229/249.
New 2" tape is expensive... Perhaps you should give "USED" tape a try... $65 for one-pass/erased 2" 456 or 3M 996 (GP9 is Quantegy's formulation of 996) from www.tapetape.com.