Unless you use entire drivetrains from the same manufacturer, it will be an issue if you face a warranty claim situation. Even if you experience ok shifting, using different brands can influence the overal wear and tear of your drivetrain. Different material chainrings might wear the chain out faster and therefore influence your cassette's wear as well.
There are some exceptions however. I'm using a Power 2 Max powermeter, I know the crank arms are produced by Campagnolo and I use them together with original Campagnolo chainrings. I notice no difference in performance (other than the obvious power data output) compared to the original chainset.
I did consider this. But I won’t be warrantying any of it anyway in all honesty. It’ll be more expensive and strenuous for me to ship parts back to Merlin than it would be to just buy whatever is broken.
@Señor_Bear had not thought of that. Will keep an eye on it.
One thing to keep in mind is warranty situations.
Unless you use entire drivetrains from the same manufacturer, it will be an issue if you face a warranty claim situation. Even if you experience ok shifting, using different brands can influence the overal wear and tear of your drivetrain. Different material chainrings might wear the chain out faster and therefore influence your cassette's wear as well.
There are some exceptions however. I'm using a Power 2 Max powermeter, I know the crank arms are produced by Campagnolo and I use them together with original Campagnolo chainrings. I notice no difference in performance (other than the obvious power data output) compared to the original chainset.