I've used 16x18 (Pro Staff 6.1 Hyper Pro Staff) and a 16x15 (Steam 99s) and thought those made my forehands too "loopy" with less straight pace (maybe better described as hitting with a higher trajectory off the racket bed?). I've used a 18x20 (Prestige MP) and felt it was too dense and board-like. Because of this, I've always felt most comfortable with 16x19 models like Youtek Prestige Pro and Wilson Pro Staff 97 (the blend of easy pop and spin that I can still flatten out as needed). However, with the new blacked out PS generation coming out, the new design is only applicable to the RF97 (too heavy for me handle when I get defensive/hitting on the run shots), and the LS and ULS versions. The ULS would definitely be too light for me as I like to weigh my rackets to around 12.3 oz or 350g. I think I could work with the new Wilson Pro Staff LS specs, but the 18x16 pattern has me a little worried. Does it play more like the more open patterns or is it similar enough to the feel of a 16x19 pattern (on 95-98 sq.in. frames)? Thanks for any input.