I am giving up on my Maruyama backpack sprayer and had decided on buying an Echo sprayer which is made by SP. From my research here on Lawnsite it sounds like everybody has better luck with the SP over the Solo sprayers. Now I just found out that a local dealer has the Shindaiwa bp sprayer for $85- not that price is an issue. Since I have not heard of anything on the Shindaiwa sprayers I thought I would see if you any of you guys/gals had any experience or info on them. Thanks in advance for any info.