going across the forearm (latereral or medial) is less common, and in my opinion would put more stresses on the solder connection.
I can see how it would make for an easy read (in theory in your particular situation)
I have a number of forearm implants but all run parallel (distal/proximal) and they all read fine.
All of this is moot as yours is in and most importantly still working, albiet with some limitations.
The reason I bring it up is you may want to consider a parallel installation next time.
Also
With regards to my “easy read” comment, I assume you are aware of and have been reading with your phone antenna parallel rather than perpendicular to the APEX?
I 100% agree with this statement
But would reccomend you go with a Hammy sticker ( I tested the RSP and Hammy repeaters and my resukts were strongly in favour of Hammys)
You dont need a sticker necessarily, there are PCB versions and LARGE PCBS that if they fit your antenna would be a great option.
I would have used a LARGE PCB if I could, but it didn’t suit my NFC antenna location, but the little sticker was a game changer for me, I went from slow and methodical very good success to slap and dash, close enough is good enough and I get a read 95% of the time on the first try, and the lost 5% is a me issue NOT a repeater issue.
To find the optimal location to place the repeater, grab one of these
What is your current phone? im assuming from your comment that the Samsung s22 ultra is no longer this one?
Have you identified the NFC Antenna position?
These may help
My testing of the Repeaters if you are interested
I hope this helps, as you have a great implant and we all want you to be able to use it, so keep us up to date with your progress, and ask away with any more questions
good luck