Sportsmatch Dampa DM60 or Diana Bullseye ZR 25.4mm

Hello friends,
My current rifle (to be healthy in the autumn I think to take FX Streamline .25 :)) is Hatsan 125 TH Vortex .22.

Given the "character" of these guns I bought "Mount Sportsmatch Dampa DM60 25.4mm High Dovetail" but it turned out that I could use my "UTG 4X32 1" Hunter Scope, Mil-dot, Airgun Rings, Adj @ 35 SCP - U432FD "should remove the heel that stands at the end of the rim of the rifle so I can stand in the correct position with respect to the optics without pinching the stock on my shoulder :( ... even in the far back position of the optic and the monoblock I still feel discomfort ... :/

My problem is that now the optics are protected by only four screws of the monoblock because the stopper that comes into the hole of the bus is with a clearance maybe 1 to 2 millimeters :-o because of the poor workmanship of Hatsan :angry:

I have not tried to fire yet how will the situation be, But I doubt there will be a problem ... My question to you is whether Diana Bullseye ZR 25.4mm High Dovetail would be a better option than Dampa in my position?

Thanks in advance! I'm sorry for my bad English!
PP. Links:
https://www.krale-schietsport.nl/en/mount-sportsmatch-dampa-dm60-25-4mm-high-dovetail.html
https://www.krale-schietsport.nl/en/mount-diana-bullseye-zr-25-4mm-high-dovetail.html#all_specifications

Pics:
The position of the optics at the moment and without the heel at the end of the rim bar:
1526130113_20518511355af6e5c1103751.60111310_2018-05-09_1.jpg

Monoblock Dampa with stopper and heel:
1526130176_9025445175af6e6009b3648.87260556_2017-12-14_14_32_23.jpg

Monoblock and heel but as in the photo the stop of the monoblock does not match the hole in the bus this is without a stop ...:
1526130286_17137217275af6e66e259099.99900854_0 (1).jpg

The shotgun bar looked from above ... even the picture shows how the holes are not symmetrical and well-crafted ... at the "live" and close even worse ... this is the quality of Hatsan for Europe ...:
1526130435_11014745785af6e70335d919.88053896_2017-12-14_14_29_52.jpg