When i first started out, i started with an RN4075 and slowly crossed over to a standard 901 over a few months. I'm currently using a DSE905, and want to get some more RN4075 atty's. I know i can get them from mypvshop.com, but they're expensive ($9.99 a piece), and I'm hoping someone knows where i can find LR versions (if they even exist), as i've grown to love LR atty's 