Russ ,What year bike you got ? I'm 5'10" but only have a 30" inseam. I switched over to the 2011 FLTRX seat . This droped me an inch from the stock 2010 seat and put both of my feet flat on the floor.
Harley also has a lowering custom seat for the RGs. I think it's narrower and a little less padded than stock.
2010 FLTRX , Stage 1, 13" Madstad, Mono tubes, SuperShox, Heritage style bars. Alpine CDE-HD149BT,Soundstream Picasso Nano Series PN4.520 , 5X7 and 6.5 Infinity Kappa speakers
If I have to explain ,you wouldn't under stand anyway.