My friend had this same bov. While I'm no expert on bov's, I think these can be adjusted with very little money (literally). Do a search, but I remember you could use quarters to space the spring a bit. Although, it sounds as if the spring may be too aggressive and it wants to stay closed? Does it come lubed from the factory?
I ran a crushed stock sti bpv for years with zero headaches. Always found bov's to be a headache of problems and sounds.