Im not sure if i posted this question at right place but i wasnt sure under which tag to post it . Basically ive been using my sensei for 4-5 years now and recently i noticed that it sometimes skips right click (about 1 skipped in 10ish clicks ) and sometimes when i hold it down it briefly releases it and clicks it again . My question is could i somehow repair it my self and if so any tips would be greatly appreciated or do i need to buy a new one , thx in advance 
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