Diana Skyhawk/ P15 what is the maximum FPE that you can reach in cal 22

Yes good to hear awesome service from Jacques at Extreme Airguns...Good Guys...

this is how she sits now with plenum. She shoots great. A little louder with just koi and no shroud but not bad. I'd get occasional flier with shroud which was odd cause there's no baffles. My only gripe now is fill probe orings. They fail every week, i lube with silicone and fill to 250bar. Any ideas. I mainly fill with my hill pump but have omega carbon fiber tank as well. 

You need to pull the probe and dress up the edges that seat the pellet. You will see what I am talking about when you get it out and look at it. You will quickly see the edges that are hurting your oring. You might also have to make a better probe bushing. Like everything else on these guns, it can be sloppy or not aligning the probe properly.

this is how she sits now with plenum. She shoots great. A little louder with just koi and no shroud but not bad. I'd get occasional flier with shroud which was odd cause there's no baffles. My only gripe now is fill probe orings. They fail every week, i lube with silicone and fill to 250bar. Any ideas. I mainly fill with my hill pump but have omega carbon fiber tank as well. 

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Looks great Airtube lines up nicely with Moderator

I polished the edges where fill probe slides in. Maybe I'll give it a little more. Thank you.

I'm sorry, I thought you were having issues with the pellet probe. I guess this is why I shouldn't be on the computer at work. Don't lube the fill probe orings, that will make everything attract dirt. You must have a little burr or a clump of anodizing in there snagging the orings. It doesn't take much and might be hard to see without magnification.

Makes sense. I'll try with no lube and check more for burrs. Thanks bud.

Customer service at its finest. I love this guy lol. Its rare for businesses to take care of customers like this. Im speechless. He made me adapter and new plenum. The one I have works fine but oring doesn't sit right and may eventually fail. I didn't ask him for new parts, he just offered. 

Also picked up SS fill probe from Airguns of Arizona this am. Solved my fill issues.

I have one Query Regarding Huma Regulator. I am going to change my Diana Skyhawk Huma .177 Regulator.

https://www.huma-air.com/Artemis-P15-Power-Tune-Regulator-XL-Plenum-Set

Is this fit for Diana Skyhawk anyone tried.if i change huma xl Plenum regulator what about speed performance FPS and accuracy consistency as well.plese suggest me.