I get refrigerant for practically nothing and we have 3 recycling machines so my playing around with my truck on weekends does not cost me anything really.
I put the VOV Orifice tube and so far it's working great! The instructions said to use 90% of the old R12 charge when going to R134a(I usually just go by 2.2x-2.5x ambient temp on the high side when doing a retrofit).This 90% worked out to 2.94 lbs of R134a.
High side pressure was 220 with an ambient of 102F. Low side was 44. This was with the blower on high,doors open and the truck running @ 1500 rpm, fan clutch roaring.
Today it was 106F with a real feal of 116F and I Had 40F air coming out my vents! Much colder than it was with the Orange Ford Orifice tube I had in it.
I'm going to leave well enough alone for now.
I figure the condenser isn't too plugged, I really gave it a good back flushing with AC solvent and 200psi of Nitrogen. Next time It gives me trouble I'll replace everything and go with the largest Paralel flow condenser I can fit in the truck.