Do not modify old. Buy new. Compatible fit 2002 to 2024 engines. Part number 21200-31Y20 is 300 USD

The hub of this basket is prematurely worn so the basket rocks on the gear causing vibration as you ride. This can also cause clutch snatch and slip as you take off. The rocking basket takes all the clutch friction plates slightly off centre just as the clutch is about to bite. You get a slip and snatch reaction. Sometimes known as a kangaroo clutch.

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Suzukis new clutch basket for DL 1050 engines from 2020 onwards are now good and do not require modification. There is no need to modify old baskets. Buy new and get the new springs and gears. They are backwards compatible so fit all 2002 to 2024 engines.
The part number 21200-31Y20 is 300 USD from the likes of Partzilla.