Imo, the Comp conical spring 7228 and the beehive spring 26915 are not designed for the same application.
The loads and rates aren’t really very close to each other.

7228- 136@1.800/399@1.200, 438lbs/in

26915- 105@1.800/293@1.200, 313lbs/in

I look at the 26915 as a spring suitable for a lighter weight valvetrain(like a small block) that’s using lobes that are very smooth.

For a typical BB Mopar hyd roller application where someone wants a beehive spring I generally use the 26120, which is 155@1.880/377@1.280, 370lbs/in.