I don't see why it would be a big deal. If anything, the fact you will be losing dopamine less should cut down on dopamine neurotoxicity. You will produce less but it will hang around much, much longer over time.
The l-amp and l-methamp are not going to be great for you, but they don't hit the CNS nearly as much as the D isomers so neurotoxicity on that end should not be a real issue. The only issue you'll probably have is if you stop it might take some time to get back to normal. If anyone else has any reason not to let me know, though, as I take it daily as well.
That's a problem alot of inhibitors seem to have.
There are a number of new substances being developed now that don't seem to have this problem as much maybe. There's a new class of compounds called NNR's (partial nicotine acetylcholine receptors) that work thru partial agonism of nicotinic receptors. Some frontrunners still being developed at the moment include:
ABT089 (from Abbott Labs)
ABT894 (Abbott Pharmaceutical in conjunction with Neurostar)
Ispronicline (from Targacept)
LongeCity
