Like RedGun said, go to your local clay target range and practice, practice, practice. Just be careful, shooting clay targets in the off season leads to new shotguns, reloading, etc. It just goes on and on. Your not having a problem jumpshooting ducks because you don't have time to think about it, instead of the long incomer that looks soo easy you can't miss, but it happens.
If you want instruction alot of members at local gun clubs will be very helpful--maybe to helpful--because most shooters want you to do well, and come back again. Here are some pro's in your area:
MIKE BORG COLVILLI (831) 422-6864
BILL HARDRATH DES MOINES (206) 227-9426
MIKE MUSGA KENT (253) 569-6828
JEFF VAN DEN TOP MT VERNON (360) 422-8820
I don't know where you are but these are some clubs:
16176 BREMERTON TRAP & SKEET CLUB PORT ORCHARD, WA
16177 LYNDEN SHOTGUN CLUB LYNDEN, WA
16181 SEATTLE SKEET & TRAP CLUB RAVENSDALE, WA
16182 SPOKANE GUN CLUB GREENACRES, WA
16180 SPORTSMENS CLUB INC MCCHORD AFB, WA
16174 WASHINGTON SKEET SHOOTING ASSOCIATION MOUNTLAKE TERRACE, WA
Look-up the NSSA/NSCA web site for more info. If it's dvd's your looking for Todd Bender has a good one, Gil and Vicki Ash as well, thier is so much info out there. Look on you-tube for skeet or sporting clays shooting and practice.
Hope this helps , Tom