Another option?
2-6gr is a tough call actually - I have a lot of experience in this weight range, most recently for sea trout. My go-to lures are around 3.5-5g, bang in the middle of your given range. I have extensively used 2 rods for this weight range - (G.Loomis S842-2 IMX & Graphiteleader Vigore 7'2"), both around 7', both rated for 4-8lb line and 5/16 & 1/4 oz respectively.
The Loomis is a mod-fast action, designed for trout fishing with an OK backbone (bends like a Supermix but further into the butt). I have caught a load of sizeable fish on it, including pike to 13lb, catfish to 18lb, chub to 5lb, carp to 8lb, perch, trout etc (not all on lures obviously). It fishes very well with braid PE 0.8 and (i built it myself) casts even better since I put on TATSG single foot guides. Whilst brilliant for spinners & plugs it is not much use for SPs, even with braid the slow tip leaves you slightly disconnected.
The Graphiteleader
http://www.olympic-co-ltd.jp/en/g_rod/vigore_spin/gvis_722l.html has not seen as much action, (some jacks, few surf-zone sea trout, a 3lb bass, a plug-eating mullet of 5lbs etc) but is an absolute peach. Good with plugs, vibration baits & small SPs. Action is fast with good backbone - it's designed for finessing largemouth bass with jigs etc so it's no noodle. It is unbelievably light and well-balanced - last I checked Plat sells it for around €300.
