LX470fan

in January 2014, after thorough discussions with a Lexus service manager re: 2000 LX470 "bumpy ride", it was determined that my Accumulators had gone bad. Lexus service manager performed a test drive over a curb to see where bounce was originating (front or back accumulators). Bounce was all over so both front & back accumulators were suspected as bad. I was told that the diaphragm(s) w/in the accumulators had failed. Cost to replace accumulators: $700 each. 4 accumulators X $700 plus labor... . Wow! With over 180,000 miles on my 2000 LX470, I wasn't comfortable investing that much into my beloved LX470. I found B & B Suspension through an email search. I spoke to the owner, Keith, several times and was assured that his parts were designed and manufactured with the highest quality. With a high level of confidence, B&B accumulators were purchased and installed. Results: less than 1 year later, my car rides more bouncy than ever! Keith, at B & B Suspension has stated that he will stand by his parts/warranty and "make it right", but I am concerned that replacement B&B accumulators will just result in the same bouncy problem. Keith has indicated that the fluid used must be contaminated, which is what others who purchased his parts claimed he indicated. Please tell me... has anyone on this forum has had a positive outcome with the B & B Suspension (after market) Accumulators? I now have 202, 000 miles on my LX470. I don't want to waste any more time/$ with after market parts, if it is a futile effort. AND my car is now a driving hazard-- the bounce is unsafe.