The RWIN is ridiculous, but the speed is fairly good.
agreed, problem with too high RWIN will only result in bigger packetloss on bad routed sites, so what you win in speed on good routed sites you will loose on bad routed sites.
On 3 Mbps connections, RWIN above 128480 is no use, a good allround RWIN for that amount of bandwidth is 64240.
But these is always exceptions, best is to calculate a value
VanBuren
