what are some suggestions for dealing with dopa issues?
I could suggest a few things. Some of them may be a little bit in a grey area so take my advice with a grain of salt.
Supplement with precursers, to allow your body to produce dopa (and other neurotransmitters). P5P, methyl-folate, SAM-E are all good options.
Deprenyl is a drug which will prevent the quick breakdown of dopamine. It can be taken 5 days a week with a 2 day break over the weekend, in order for it to remain effective. A little bit of PEA before sex does wonders when on a deprenyl regime. Better than supplementing with l-dopa, but be careful. Research this more. Brainmeta and immun inst are two good places to research this.
Wellbutrin can help with dopamine. Some people like the combination of wellbutrin and deprenyl, but again, be careful, and research this.
If you want to treat dopamine receptor sensitivity, Memantine is a drug which will upregulate your D2, D3, etc receptors.
I've also found Stablon to be amazing for dopamine, it greatly enhances the firing rate of dopamine, and I think it also effects sensitivity to dopa. I've had to take 4-6 tabs per day though, a little higher than what is initially recommended. Very expensive drug, but was well worth it at the right dose.
Also, make sure DHT is at a good level, top of range or even slightly above range. It doesn't hurt to have high DHT while on TRT, as it helps keep E2 in check as well, in some ways (as long as you don't have male pattern baldness).