RE: piggyback shocks
Your theory of the more oilthe better is true with all the recent shift in buggy shock design towards big-bores, but as far as piggyback's go: Nobody who seriosuly races ever uses piggyback shock. While in theory you should be able to apply 1:1scale techinology to R/C in this case it just doesnt make any real difference. And as far as those Jammin big-bore go they are some of the best shock you can easily get on an OFNA Buggy & some of the best shocks on the market period. all you need is a small little shock mount pece and some easy to find hardware, and you can put the jammin big-bores on. I forgot the mount part #, ill look for it, and if I can;t find it there are alot of guys who have done this mod and they'll know it.
EDIT: Heres the shock mount's you need to fit the Jammin big-bores.
[link=http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXMRL0]Ofna Shock Ball Post[/link]
Also you might wanna try over at the OFNA forums there are alot of helpful guys there.