bingo.
I was told the same thing 10yrs ago when I bought my hughes cam/lifters & springs.
they don't tell everybody that they figure in 'spring break in' or 'spring cycling' which is where the spring upon cycling with heat/compression loses 7-9lbs , btw that is what dave told me back then, that they start out heavy to compensate for the psi lose after spring break in.
Ahh.....That explains why mine tested so high.
130 psi seat would have worked, but 150+ on a fast ramp is disaster city.
Cool thing about double springs is you have pull the inners and drop the seat pressure down 20'ish psi for break in.
Yep their sure easier. Going with the high pressure beehive's caused me to have to buy an extra set of lighter weight springs to break in my cam.
I love how they talk about lite weight beehive springs saying they are like titanium valves.....
I'll take the lighter valves 1st, unless they hit rockers er sumthin.
Lighter valves/'retainers' and lighter lifters are the key here.jmo
Did you know that hughes solid lifters weigh 20 grams a piece MORE than mp solid lifters? -320 grams extra to bounce around..maybe thats why they really need that beehive.
if it wasn't for their rockers...they could drop off the face of the planet for all I care.
LOL!! After my last experience with them I feel the same