During a takeoff into IFR conditions with low ceilings, when should the pilot contact departure control?

(Refer to figure 58.) On which frequencies could you communicate with the Montgomery County FSS while on the ground at College Station?

What is expected of you as pilot on an IFR flight plan if you are descending or climbing in VFR conditions?

(Refer to figure 91.) What is the minimum crossing altitude at SABAT intersection when eastbound from DBS VORTAC on V298?