That was my thinking. Bud's cross member for mini trucks is just formed 3/8" steel, no additional reinforcement. Seem to do OK for most 'normal' users, even with Ultimates. Bud's skids usually deform eventually, but they are either 0.120" or 3/16" and really take the beating.
'91 Pickup - Imelda / '08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'98 Rhygin Juke SS / '12 Gunnar Rockhound 29 / '16 REEB Dikyelous
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein