What have y'all been doing when it comes time to replace the HPG's? They are not rebuildable so, the options are few. To me, it does not make sense to replace with the same non-rebuildable HPG's for $240 each. Do the year 2000+ HPG's, which I think are rebuildable, fit my sled? They are around $265 each. How about Ryde FX? They are $210 each and rebuildable. Anyone try these? Do not want to put big coin into sled and end up unhappy.