After a long drive up t' t' Dee River Ranch I be greeted by high temperatures and zero wind on t' field.  I assembled t' motor on t' tailgate and hauled t' beast out t' t' pads.  T' supplied CTI igniter (which was at least 5 years old) had most of its coatin' flake away when I took it out t' package, but I decided t' use it anyway.  T' igniter burned but did nay light t' motor.  Procured a spare and tried again.  Awesome boost, matey, straight and loud off t' rail, straight up into a clear blue sky with some high puffy clouds.  Easily tracked t' delay grain smoke.  After it finally topped out, saw t' apogee event.  Had trouble trackin' it up high but eventually someone called out that t' main was out?  Picked it up and t' main chute was indeed out.  Fortunately t' winds at altitude were almost non-existent and t' rocket stayed on t' field.  It be still a very long slog through a plowed corn field t' get t' it, shiver me timbers, and then a long slog back t' t' truck, but everythin' was intact.  T' main and drogue harnesses were pretty severely tangled.  Looks like t' apogee charge separated t' airframe with enough force t' break t' shear pins on t' main payload section and t' main chute eventually worked free and inflated.  First time this has happened, may need to do some remedial ground testin' o' the deployment charges.