The way I work an xrap from shore is to cast almost parallel to shore and then fan cast. You will get weeds on every cast especially as the year wears on. This year the weeds are already up because of the warm march. That is ok though. If the weeds are up just do more casting out into the lake beyond the weeds and as you retrieve and get closer to the weeds experiment but make more pauses. This may entice a bite from a bass sitting on the edge of the weeds. Also, you did mention some good structure but look for pockets in the weeds and target those areas. As we get into may try and use a jig or jig and trailer. Also target the areas that you have mentioned as far as downed trees and pockets in the weeds. When working a jig early season, I pop the rod aggressively and wait until later in the season for the typical lift and drop retrieve. Good luck. I have noticed good colors in x-raps and lippless cranks to be firetiger, sexy shad, and orange craw patterns in 1/2 oz. X-raps most success on olive/silver, perch, or hot steel #8 size. Jig and trailer pumpkin with dark green or black trailer also black and blue jig with dark green or black craw or creature trailer. Also, don't forget the weightless senko rigged wacky style in the weed pockets and around downed timber or other structure. Good luck, don't give up and you will get em!