What year is your bike (yes, I see a 1995)? The 1985-'89 bikes use a CDI which is more-susceptible to issues after using COP's. The best way to go with COP's is to match the coil resistance to what the CDI expects to receive. The 1990-'07 bikes' CDI seems to be less sensitive to the resistance, but for best results, match the coils to what the bike wants to see.
You want more power from your coils, buy DYNA 3 ohm coils. You will have to do some fabricating to mount them, but they are hotter than COP's. Not cheap though.
The main advantage of using COP's is the ease of switching a defective one out. They do not offer a performance boost over the OEM coils. Honestly, if your coils are performing OK, I'd leave 'em alone, ensure the connectors and leads are intact, not corroded, and inspect the high-tension leads are shiny-bright, and not green with oxidation/corrosion. If they are cut the lead back about 1/4" and see if that gives you shiny wires to screw-into the coil tower. If you decide to replace any high-tension wire, ensure that the wire is the same diameter as OEM, and remove the 'wedding-band' (called an 'olive') on the OEM wire, which acts like a compression fitting when the fluted thimble-looking threaded plastic nut is tightened.
Dyna Igntion Coils Set - Single Output - 3ohm Single Plug/Single Fire | Dynatek (dynaonline.com)