Have been look at the Russell option for awhile now.....the cost is WOW !!! But I'm told soon forgotten, only real issue is postage costs of your seat to the US and back, then if it needs more mods to be made which are free on charge.....except the to and from Postage.
Thought about buying a factory seat second hand of U.S ST owner and getting it sent to Russell.....would save some $$ IF they get it right first time....
Cheers