Hello Commanders!
I would think that a number in the range of 500 - 1000 would be an appropriate start. It's a decent amount of vouchers.
In fairness, any limit that isn't sky high should cause a significant reduction in sniping capability.
As a relative noob to PowerPlay (pledged to Hudson since I first launched in my starter sidewinder but only started taking an active part recently), I'd agree that the 500-1,000 mark seems to be about right. Enough to make the trip worthwhile but not enough to entirely 'flip' a system in one drop.
As an example, I've focused on keeping myself at Rating 4, which means I generally need to earn roughly 800 merits a week. I've found that undermining I can generally make 400-500 merits an hour in my Vulture, so it takes me two hours of undermining to top up my merits for the week. I then spend the rest of my time alternating between fortification runs, mission-play and trading.
With a limit of 500 merits in any single drop I would need to do two trips into enemy space to make my weekly top-up; with a limit of 1,000 I could do the top-up in one run. Either way round, that generally represents one (sometimes two) sessions of play, so not exactly a hardship.
That said, I do also think that the 'trade-run' PP activities could possibly do with some attention. As it stands, getting 1 merit per ton of fortification or preparation means that any PowerPlayer wanting to maintain a decent rank has two choices: earn quick merits undermining the opposition or grind the merits doing trade runs. For those who have limited time to take part this effectively equates to either quick merits through combat or putting up with a low Rating doing trade runs. Of course, it is possible for a trade-run PowerPlayer to fast-track their progress, but from what I've seen the cost/benefit ratio in this case would suggest that only cash rich players can effectively fall back on this option, and even then the most a trade-run player can earn would be limited by the size of their cargo holds, which in turn is again limited by their bank balance (richer players can afford bigger cargo haulers).
Anyway, that's just my thoughts, uninformed as they may be, but I hope they're helpful.
