THOUGHT CLEARED INTO POSITON ON RWY IN USE.

Narrative

AFTER RECEIVING IFR CLRNC FROM RNO TO OGD; WE TAXIED FROM FBO TO TXWY B AS DIRECTED BY GND CTL. 4 OTHER ACFT WERE WAITING ON THE TXWY FOR CLRNC TO CROSS RWY 34L FOR DEP ON RWY 34R; MAKING IT IMPRACTICAL TO TURN ONTO TXWY B FROM TXWY A. A LARGE COMMERCIAL JET HAD BEEN DIRECTED TO FOLLOW OUR SMA ON THE TXWY A; BUT COULD NOT INITIALLY PASS AROUND US AT THE JUNCTION OF TXWYS A AND B. FOLLOWING POS MANEUVERING BY THE OTHER 4 ACFT; WE WERE ABLE TO TURN ONTO TXWY B AND CLR TXWY A TO ENABLE THE JET TO PASS BEHIND US. AFTER SOME CONFUSING INSTRUCTIONS FROM GND; THE OTHER 4 ACFT WERE DIRECTED TO CROSS RWY 34L FOR DEP ON RWY 34R. WE WERE NOT CLRED AT THIS TIME. AFTER HOLDING IN #1 POS ON TXWY B; WE WERE CLRED FOR A MIDFIELD TKOF ON RWY 34L. THIS WAS ACCEPTABLE SINCE IT PROVIDED 5000+' OF REMAINING RWY. WE WERE ALSO DIRECTED INTO POS AND HOLD. UPON STARTING TO ENTER THE RWY; LOOKING TO OUR RIGHT REVEALED AN ACFT ABOUT TO T/D ON THE THRESHOLD END OF RWY 34L; SO WE STOPPED BEFORE ENTERING MORE THAN AN ESTIMATED 25' ONTO THE RWY. TWR THEN DIRECTED US TO MAKE A 180 DEG RETURN TO TXWY B AND TO CLR THE RWY. SINCE WE WERE PARTIALLY ON THE RWY; AND ON THE RIGHT HAND SIDE OF THE TXWY EXTENSION; OUR TURN WAS DELAYED UNTIL WE COULD LOCATE THE RWY AND/OR TXWY LIGHTS IN THE AREA WHERE WE HAD TO LEAVE THE PAVING. AFTER THE OTHER ACFT; BELIEVE IT WAS AN SMA; HAD LANDED AND CLRED THE RWY; WE WERE AGAIN DIRECTED INTO POS AND HOLD FOR A MIDFIELD TKOF ON RWY 34L. WE WERE FURTHER DIRECTED TO FOLLOW AND KEEP IN SIGHT AN SMT DEPARTING ON RWY 34R SINCE IT; TOO; WAS ON A PYRAM 5 DEP; AND TO ADVISE WHEN WE LOST SIGHT OF THE SMT. IT APPEARS THAT THE VOL OF INCOMING; OUTGOING AND TAXIING TFC WAS A PERTINENT CAUSE OF THIS OCCURRENCE. CONGREGATION OF ACFT ON A SHORT TXWY; COUPLED WITH CONFUSING INSTRUCTIONS FROM GND/TWR ADDED TO THE POTENTIAL OCCURRENCE. LOOKING FOR INCOMING ACFT BEFORE ENTERING THE RWY; AND A SECOND LOOK WOULD HELP AVOID A RECURRENCE. ADDITIONAL TWR PERSONNEL TO OBSERVE THE GND AND AIR TFC SITUATION AT EXTREMELY BUSY TIMES (SUCH AS OUR DEP FOLLOWING THE RENO AIR RACES) WOULD ALSO HELP. GND AND TWR INSTRUCTIONS NEED TO BE CLEAR; CONCISE AND NOT GIVEN AT A SPD THAT MAY CAUSE REQUESTS FOR REPETITION; OR WORSE; THINKING THEY ARE UNDERSTOOD WHEN THIS IS NOT THE CASE. CEILING AND VIS WERE NOT RESTR; AND RWY VIS EXCEEDED THE LENGTH OF THE LONGEST RWY; 34L.