Beehive valve springs

[SONICUSA]

My speed shop- Boyd's Machine & Racing Engines- Norman Ok builds a lot of race motors... drag, short/circle track & marine. They recommended the beehive springs on my rebuilds (two BBC 468's) they have Brodix heads, roller camss, hydraulic rollers, roller rockers, etc. all met Comp's tech specs. Both engines were dyno'd at up to 6000 rpm.......This is a Marine application but.... both engines have broken springs (2 incidents)... both intake & exhaust, a total of 6 springs on 3 different heads of two different engines with less than 5 hrs on the engines. Neither engine has exceeded 4500 rpms in use.... EVER!! When Boyd's contacted Comp about this, they said they had never had an ovate (Beehive) spring break/ or fail. I found that hard to believe after reading this post!! Comp must be worried about the bad press on the Beehives. They also verified all the valve & cam specs again with Comp. We had to pull 3 heads, replace 5 valves, replace one piston, replace one valve seat (broken valve) and are replacing all the springs with duals as I used before. Beehives leave no safety factor on a spring failure!! Better to use duals...... would have saved me alot of money & frustration!!