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What max RPM's should I be aiming for when clutching without falling off the power band??

2016 SB 800. Changed gearing to 22/38 . Changed Primary spring to 120/310 . Installed 70 gram Polaris 10 series weights. Changed secondary to 50/44 Full progressive with 7043151 Polaris spring. (forgot to write down what the rate is. Will have to look it up and post later). In stock form sled...

I have 2016 Pro S 800 Switchback studded with 1.352 cobra. I would like to gear to 1.73 or 1.74 as recommended here. The service manual I have says stock gears are 23/37 . I am sure I have read here or on other forums that the top sprocket "stock" is a 22 tooth. Can someone verify this for me? I...