Front to Back Min Length of Base 7.5”

[David1776]

I’ve been wearing for 8 months and started cutting stock bases to 4” x 6.5”. I never notice this before but some suppliers list in their specs for all lace and thin skin models that the minimum cut down length is 7.5” for base. I’m wondering why? I haven’t noticed any issues.

Thanks

 

[David1776]

I found another post on this. it appears to be due to the location of the crown and not wanting to cut in to it.