A more open dome is used for people with less impaired low frequency hearing. I don't think a fully open dome would be good for your loss, especially the right ear. A lot of the adjustment is just your brain getting used to things. Do you know what receivers and domes you were trying? Any idea what fitting formula the audiologist used? (Likely a Widex proprietary, but perhaps NAL-NL2) If you go the self programming route, you'll want to look at classes on audiologyonline.com They're free unless you want CE credits. Also I saw some instruction on fitting on Widex's website. Since you're essentially new to hearing aids, I suspect you'd do fine initially with the S receivers if you want to save some money initially.
Originally Posted by ISR
.25 .5 1 1.5 2 3.0 4.0 6.0 8.0
15 15 20 30 30 55 75 90 NR KS7
10 10 20 15 25 35 65 85 95 WRS 100/92@45/40