Using MTH Trestles with O Gauge Tubular Track

[BruceOmega]

I tried doing a search but did not find info I was seeking, or I wasn't using the search function correctly(?).

I want to use MTH Elevated trestles with Lionel O Gauge tubular track.  MTH has two types of trestles (Elevated Subway Trestle Set and Elevated Trestle System).  Each one of these shows two model numbers, one for RealTrax and tubular (40-1047 and 40-1034) and one for Fastrack (40-1157 and 40-1134).

Are the RealTrax/tubular actually different than the Fastrack?  Do you know if I can use tubular with the Fastrack ones?

Thanks, Bruce