Aftermarket dipstick

[OregonNed]

I've been doing little things along the way under the hood and recently purchased one of those stainless steel billet type units that mount to a header bolt. What I had original was probably a Mr Gasket or something that was kind of beat up. I like how it mounts into the block - its very firm. when inserted the knob end fits kind of loosely in the receptacle. It has one small o ring. Does that sound normal for these? I doubt driving or running the engine would expel it. It was only $18, and I'm wondering now if a Moroso or Lokar might be better? Any experience with any of these mentioned? Also based on the old dipstick five quarts with one for the filter registers full, bit the new one barely has a wet tip. Somewhat shorter. I have an aftermarket chrome pan but I'm sure is similar to stock. Thanks all