Combining Ikelite and ULCS arms

I currently have the Ikelite strobe arm with a single 6" section. It has a 1" ball on both ends. I would like to eventually upgrade to ULCS arms, but for now I would like to add an 8" section and 1 clamp to my strobe arm. Will an ULCS 8" section and clamp work with my existing arms section and clamps or do I need to replace it all now. I am wondering because the Ikelite balls do not have o-rings on them like the ULCS balls.

Thanks for all the help.

Yes, Ikelite (well the 1" ones) and UCLS parts are 100% compatible.

Also, Ikelite clamps work fine with the ULCS oring arms, so no need to trash the clamps IMHO