You could do that but I dont know your reason for buying a LEAP call.
First you need to establish whether you are bullish or bearish and your time frame. If you are long term bullish on SLV, you would buy the calls at lows then sell calls against them when SLV hits resistance (along with other factors, but I'm being simplistic with these terms) then cover them on dips. Its the same type of trade as a covered call.
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