SERK3, I am a big fan of the Airhawk. I am on my second - my first one experienced a rub hole in the front after about two years so no warranty coverage

. I used it 100% of the time on my stock '01 SERG seat and was always comfortable even on 400+mi days. When I acquired the Silvr Bulet (09 SERG3), I felt I probably wouldn't need it with the Danny G. solo seat and gel pack but found out on Friday that after 100mi of riding, I still got numb buns and discomfort. I put the Airhawk on when I got home. Looks better on the Danny G. and felt much better sitting the seat. I'll be using it on longer hauls from now on. Can't attest to what it might do for the wife's back but several of the guys I ride with bought Airhawks after trying mine and for those whose wive's ride, bought them one for them too. Now the wives who have em' won't ride without them. I'd say

By the by for HDDOCFL, I have the largest one and it looked okay on the stock FLTRSEI2 seat but looks better on the Danny G. on my FLTRSE3.
Cheers,
Silvr