Mr. Pond: If you decide to sell it, can you easily acquire an affordable CZ 'PCR'? I hated to read about those issues, but the SP-O1 seems to be the only CZ handgun I've read about with numerous problems (some had to replace different springs in new guns).
My PCR was bought with about 80-120 total rds. in it, and has been 100% reliable. As good as my 1994 Sig P228 and .380 Russian Makarov.
A very small fraction of the CZ ammo has been Russian steel-cased, the rest has been the lowest-cost, US-made 115 grain brass-cased, i.e. Rem., Win, Blazer, Federal etc.
A chunk of almost every ammo box has been kept in a labeled, small plastic bag-these 24 pieces = approx. 1200 rds. used since I bought it.
The mags are MecGar.