HCI vs. Regency medical insurance (other other better choices?)

I started using HCI four years ago and can continue with them this year or switch to a new policy.  My policy is up for renewal this month.  They're not too expensive but the policy has a $2000 deductible.  I've never made a claim yet but it's good to know I'm 100% covered if I ever had a big problem exceeding the $2000 deductible.  I'm 60 years old with no major medical problems.

My agent suggested I consider switching to Regency insurance this year.  They have an office in Bangkok unlike HCI.  They are more expensive but they have no deductible on claims.  Apparently, the yearly price I was quoted includes a 40% discount but if my claims exceed 120% of my yearly payment I would lose the 40% discount the following year.  Interesting game.  I suppose many people don't make claims as they approach the 120% limit unless they have no choice.

I'm wondering if anyone who reads this forum has any experience with either of these two companies?  Also, can anyone recommend a better choice that I don't know about.  I think I don't want to use BUPA.  There preexisting conditions form looks overwhelming whereby HCI and Regency don't require you to list preexisting conditions.  I don't even have any major preexisting conditions but I don't want to deal with their form unless there's a compelling reason to do so.

Thanks.