I'm getting 305 to 335 on SA in this month's No Wind tournament with the R1.
I just played another round so here are the drive distances from each hole I hit the R1 from the Tee on.
Note: Nike L 85+, 20XI-X, RZN vapor ball, no top or back spin was used on any tee shot. All but 1 drive landed, ran, and ended in the fairway. Legend tees. Carry (in the air) is generally 180 - 185 yards with no spin.
#1 Ding - 314 yards
#2 Ding - 323 yards
#3 Ding - 331 yards
#4 Ding - 326 yards
#5 Ding - 314 yards
#6 - 313 yards (close to ding)
#7 - 302 yards (Ball landed on an upgrade, and close to ding.)
#9 Ding - 312 (close to ding)
#10 - 307 (close to ding)
#12 - 315 (late ding)
#13 - 331 (close to ding. Ball ran into rough near end of roll out )
#14 - 312 (close to ding)
#15 - 316 (close to ding)
#16 - 316 (late ding)
#17 Ding - 315
#18 - 314 (close to ding)
Average drive distance - 316.3 yards. and 94% of fairways hit. Score: 61