Ok, Spring overseeding - not best. This I know, but I had a couple of clients that had dirt work done or large bare spots and it had to be done. For all of the hype surrounding it, I rented and tried the Lawn Solutions Turf Revitalizer. (6.5hp). I am now in the middle of April and about to have to GO BACK and overseed again because of an 1) underpowered machine that 2) sometimes had a sticky seed-bin gate. I'm trying not to blame the equipment as I should have known better - I should've just done it the hard way, but I was trying to quell weed infestation by using a slit seeder. So - any advice on the best way to go back and make things right for these clients? I applied starter fert and Transition TTF 4 weeks ago after aeration (I know - spring aeration and fert - aerated because some hadn't done it in YEARS, and after last year's drought, they had some serious hard-pack). We have had a torrent of rain since I seeded, with 3.5" in the last 7 days -- it's raining today, and will rain again on Friday. Most of these lawns are established lawns with large bare areas or sparse grass, and I need to get grass growing ASAP (my money - they've already payed for the job). Dare I try the 9hp Turf Revitalizer? Will it be powerful enough that I can verticut an entire yard, bumps, troughs and all? Can I just go back and scratch these bare areas, apply seed, and more starter fert? (weeds - I know). How long after I seed can I sub someone to come in and apply a post-emergent. Thanks - it's tax week, and all of my spring turf renovation clients have (with good reason) been hurling dung at my fan. I've never screwed seeding up before, and some of these are new clients, so as far as their concerned, I can't do anything right. Maybe I'm thin-skinned on this, but I'm small enough that I can't just hack-off clients and leave, . . nor can I afford to do everything twice. thanks in advance.