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WTG = with the grain, XTG = across the grain, AGT = against the grain. In general mos shavers use WTG and XTG. Reportsof too much irritation and ingrown hairs from ATG. As they say, who knows and...

Two (or more ) things come to mind.

Get a blade sampler, usually 5 to 10 different brands. Cheapest way to try them all out. (For me it is the Astra Platinum)
Are you stretching your skin?
Angle...