Just follow the instructions
[QUOTE=BionicMan;2645977]Let's say that a proper test needs the swab to go the nostrils to an extent that if self administered one will stop before, which is pretty common and natural. The way the swab takes place is quite significant to the result of the test. Then each one his own.[/QUOTE]You obviously haven't taken a take home rapid test before. The instructions literally tell you to just swap the inner walls of your nostril.
"Gently insert the [B]SWAB[/B] 1/2 to 3/4 of an inch into the nostril, depending on the size of the person's nose. Firmly rub the [B]SWAB[/B] in a circular motion around the inside wall of [B]EACH NOSTRIL at least 4 times[/B].