I've been thinkin about getting the vintage wide touring seat. I was wondering if they fit securely on the bike....I have a 2002 Sabre. On their website it says side mounting bolts are not used with one piece seats. It says all you do is ingauge the nose tab into the receiver at the base of the gas tank and secure with stock acorn nut on your rear fender. Before I spend the $$ I was wanting to know if they mount real good onto the bike without moving/shifting while riding.....