I just thought Id try get a general opinion. Now unlucky for me Im still stuck with a brushed motor

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When I rebuilt it last night, I had some Rheinard 9 coil springs and decided Id try these. When I put them in, I found them extremely stiff, so hard I nearly ruined the new brushes trying to put them in. I can tell already there much too stiff and will probably mean alot more comm wear.
My motor is an Orion Revolution 12x1 HT V2, now I only get around 6 runs between a skim, and I think it'll be even less with these springs. What springs does the motor come with when you buy it, what are you running and would soft springs be too soft.