I have seen 3 Globalstar rockets so far and each one, Globlstar 45 r #25680 99019E, Globlstar 22 r #25653 99012E and Globlstar 36 r #25625 99004E had varying degrees of tumbling. I have yet to see Globalstar 6 r #25310 98023E and Gblst 52 Del r #25774 99031E. Does anyone know if these are tumbling? Jari