Just my opinion but I can't see that 'tapered' o-ring staying for very long on the piston head, and when it does come out it'll be darn annoying...
Still the sorbo looks promising, but that seems like it could come off easy too unless applied really well with awesome-sauce glue.
Still the sorbo looks promising, but that seems like it could come off easy too unless applied really well with awesome-sauce glue.