Hogue Soft Rubber Grips are great on a SRH. The finger grooves are the standard, but I believe you can get them without grooves.
Their web site is:
http://www.getgrip.com/
Their 800 number is also on their site.
They are very comfortable and no sharp areas. My wife has small hands and can easily fitre both my SRH and GP100 using them. I believe they retail for 21.95. By the way, Midway USA, I believe has a $4.00 fee if you spend less than $40.00 on a purchase.