I figured out how to do it. I ran tests on my demo cart. I used the following
UPDATE ps4_users SET UserCompany = SUBSTRING(UserCompany , 1, 35)
UPDATE ps4_users SET UserAddress = SUBSTRING(UserAddress , 1, 35)
UPDATE ps4_users SET UserAddress2 = SUBSTRING(UserAddress2 , 1, 35)
And then, that allowed me to set from 100 to 35. Thanks for your help, Ray.