ok got this working sort of
i got some mixed results with this
i did small batch of eshop roms maybe it is because of region?
i converted ketzal corridors , sakaru samaraui ,3d classic twin bee ,3d classsic kid icarus
i then installed them on my 9.0 fw N3DS XL AU running rxtools with emunand 9.5 and on my 4.4fw old 3ds xl running GW 10.3 emunand
all games work on the old 3ds ,
on the N3ds twinbee says fatal error after i start it and kid icarus just blackscreens, (as does other 3d classic kid icarus cia's i downloaded from that iso site, 2 different cia's i downloaded from that iso site blackscreen on both my consoles)
ketzals corridors and sakaru samauri both work on the N3ds, but the weird thing is that the banner is kinda messed up for sakaru samurai on the N3ds but it's fine on the old 3ds , but it runs on both consoles, you can see some of the banner the girl with the sword but the log is not there an there is a huge white patch, but it run fine , really weird
guess i will try converting a EU region rom of 3d classic KI and try it again
since i am not sure if this implements RF, and the roms i used are old and i am not sure which region they were
EDIT: ok seems like kid icarus was region issue but i am still puzzled at why the sakaru samurai banner is messed up