My only concern on those was that you are removing bolts that were installed at the factory and that you still have the issue of debris getting in all the crevisis where the allen tool goes in. Also, I don't want to start any oil leaks.
Hot-Toppers ARE a friction fit on most regular Harley-Davidson bikes. The problem for the V-Rod owner is that they sell you covers designed to go on SAE sized fasteners, when you have many metric fasteners on your bike. Hence, they are NOT friction fit, and thus require the silicone to hold them in place.
I've replaced many of the stock fasteners on my bike with chrome ones, and I haven't had a problem with debris getting in, nor with oil leaks. You do need to exercise a reasonable amount of caution when installing the replacement fasteners - i.e. you should replace the fastners one by one, and follow a star pattern when doing so, especially on things like the clutch cover. You also will need the service manual, a tube of Loctite, a good torque wrench, and a set of ball-end long-shaft metric sockets to do the job properly.