I have a plate on my Gamma that reads: LONSTER.
On my Lucky Strike, I applied for the plate: LQNSTER. I was denied.
I appealed the decision and was denied again. The letter said that LQNSTER was too close to an existing plate. I went as far as getting a phone number for the lady that made these decisions, and spoke with her about why I couldn't have this plate. She confirmed that it was too close to 'another personalized plate'. I used the argument about standard consecutive plates being a single digit off, but she didn't budge.
I finally argued that, even though both plates were very close, they would BOTH BE ON MY MOTORCYCLES! In the event that a police officer needed to contact me about EITHER plate, BOTH would lead back to ME.
DENIED.
I ended up going with LONSTR1.