[bobbert]

Can give you side by side comparison. I Presently own a 20 and 25 Bert Moppie, and a 20 and 23 cc Seacrafts.
20 bert- Hull issues, stringers usually bad, floor balsa core
usually bad, original gas tank Fiberglass a no-no, transoms usually o'k as Bertram glasses key hole. Original seating good after market usually not as comfortable. Ride not as soft as Seacraft. Fantastic in following sea. Slightly corky action drifting in a cross sea. Will drift nose into tide.
20 Seacraft no need to make comment
25 Bertram. Usual issue is the glass fuel tank and original 6 cyl. GMC Truck engines. Structurally the 25's are built like tanks. Occasional soft floor in corners by engine hatch. Transoms most OF TIME are SOLID UNLESS SOMEONE PUT A LOT OF Holes IN WITHOUT SEALING PROPERLY. This is a BEAMY boat ( 9' 6"). Not a candidate for trailering, you will need a rig capable of hauling 10k. Moppies just fine with 3.0liter Mercruisers. Cruise @3100 rpm = 20 kts. Burn 8-10 gph at cruise. Fantastic in following sea. Not as soft as 23 Seacraft. Shear beam and weight let you power thru anything.
Any other specific quesytions send a PM. Bob "The old timer"