+1 on keeping one in the chamber.....
Is the "practical" a different length than standard... and if so, is the replacement spring you bought the correct one? Not that it makes much sense since you said it had the same issue before you replaced it.
How many rounds have been run through this pistol? It may just need broken in some to loosen things up a bit... I too love the High Power... No other pistol fits my hands as well as they do.
Leave me alone... and I will leave you alone....
Don't poke a wolverine with a sharp stick unless you want your balls ripped off.
Don't start nuthin, wont be nuthin.....